The phrase “dark night of the soul” has entered common language as a catch-all for any period of sadness or spiritual struggle. But its origin is specific: St. John of the Cross, a sixteenth-century Carmelite mystic, used it to describe a stage of spiritual growth in which God withdraws the felt sense of His presence in order to purify the soul. It’s a purification, not a punishment, and it has structure, prerequisites, and recognizable fruit.
Clinical depression is something else entirely. And confusing the two can be genuinely dangerous — both spiritually, because it leaves people without the clinical care they need, and clinically, because it can delay treatment of an illness that is highly responsive to it.
This is the most common confusion I see in my practice in Denver: a Catholic experiencing what is, by every objective measure, a major depressive episode, but interpreting it through the lens of mystical theology and waiting for it to “purify” them. Meanwhile, the depression deepens. So let’s get specific about what the dark night actually is, what it isn’t, and how to know what you’re dealing with.
Three Things, Not Two
The first move is to expand the categories. People typically frame this as “spiritual dryness vs. clinical depression,” but St. John’s framework actually distinguishes three different experiences:
Ordinary spiritual dryness — periods when prayer feels flat, distractions multiply, and consolation evaporates. This is normal, common, and usually correlates with stress, fatigue, life changes, or the simple fact that the affective dimension of prayer ebbs and flows. It typically resolves with rest, examen, sacramental life, and time. Almost every serious Catholic experiences this regularly.
The dark night proper — what St. John of the Cross actually described in The Ascent of Mount Carmel and The Dark Night. He distinguishes the “night of the senses” (a purgation of the imagination and sensory consolations in prayer) from the deeper “night of the spirit” (a purgation of the intellect, memory, and will). Both are stages of contemplative prayer described for souls already advanced in the spiritual life. They are not common. They have specific markers — most notably, a desire to keep praying even though it feels useless, and a deepening, not a deterioration, of love and humility.
Clinical depression — a medical condition affecting brain function, mood, energy, sleep, appetite, concentration, and self-perception, with measurable neurobiological correlates. It is described diagnostically in the DSM-5 and treated by therapy, medication, or both.
A person can experience any one of these without the others. A person can also experience two or three at the same time — the saints did. But they require different responses, and the cost of misidentifying which one you’re in is high.
What St. John Actually Wrote
This part matters because the term gets thrown around a lot, often by people who haven’t read St. John. He was writing primarily for souls already practicing serious mental prayer — people whose spiritual life had matured to the point of contemplative engagement. The “night” is what happens when, paradoxically, advanced practitioners experience the apparent absence of what they had previously found in prayer.
His three signs of the night of the senses, summarized: (1) the soul finds no comfort in the things of God or in created things; (2) the soul is anxious about its lack of fervor and concerned that it is going backward; (3) the soul cannot meditate as it once did but is drawn instead to a quiet, loving attentiveness to God it can barely articulate.
Note what is not on that list: inability to function, loss of appetite, sleep disturbance, suicidal ideation, anhedonia in non-spiritual domains. The night, in St. John’s account, is a specifically contemplative phenomenon. The person undergoing it can still get out of bed, do their work, love their family, and care for those around them. Their daily life is not falling apart. It is their experience of God in prayer that has gone dark.
This distinction is crucial. If your inability to enjoy your kids, hold a job, or care about food is part of the picture, you are not describing what St. John was describing.
The Saints Who Struggled
One of the most important things for Catholic clients to understand is that many canonized saints experienced what we would now recognize as depression — and the Church has not flinched from acknowledging this.
The most widely-discussed example is St. Teresa of Calcutta. The publication of her letters in Come Be My Light (Brian Kolodiejchuk, 2007) revealed that for nearly fifty years she lived in profound interior darkness, describing an experience strikingly similar to clinical depression: persistent emptiness, the felt absence of God, a sense of being unwanted, anhedonia in prayer. Theologians have debated whether her experience was the dark night of the spirit, clinical depression, post-traumatic effects of decades in Calcutta’s slums, or some combination. The honest answer is probably “all of the above,” and the fact that we cannot cleanly sort it tells us how often these experiences overlap in real lives.
St. Thérèse of Lisieux battled what she called “temptations against faith” in her final illness — what today would be evaluated for major depression with possible psychotic features in the context of advanced tuberculosis. St. John Paul II spoke openly about the suffering of mental illness. Pope Francis has repeatedly addressed mental health publicly, urging Catholics to seek professional help when needed.
These weren’t people of weak faith. They were people of extraordinary faith who also suffered from conditions of the mind — conditions that, in their era, often had no clinical framework for understanding or treatment.
The Church has never taught that holiness requires perfect mental health. The tradition suggests the opposite: God works powerfully through brokenness, and seeking healing is itself an act of cooperation with grace. The Catechism of the Catholic Church (§2288) explicitly affirms the obligation to care for one’s bodily and mental health.
A Practical Discernment Framework
If you’re trying to figure out what you’re dealing with, here’s how I work through it with clients in session.
Look at the scope. Spiritual dryness and the dark night are confined to your prayer life. You can be in the middle of either and still enjoy a meal, laugh at a joke, get absorbed in your work, sleep through the night. If your loss of pleasure has spread to most of life — food, relationships, hobbies, sex, work — you are looking at clinical depression. The diagnostic term is anhedonia, and it is one of the two cardinal symptoms of major depressive disorder.
Look at function. Are you able to fulfill your basic responsibilities? People in spiritual dryness usually keep showing up — to work, to family, to Mass. People in the dark night often increase their fidelity to spiritual disciplines despite the unpleasantness. People in clinical depression progressively cannot.
Look at the body. Depression has somatic signatures: changes in sleep (typically early-morning waking with inability to return to sleep, or hypersomnia), changes in appetite (typically loss; sometimes increase), psychomotor slowing or agitation, persistent fatigue out of proportion to activity, difficulty concentrating, decision-making paralysis. None of these are markers of spiritual dryness or the dark night.
Look at the cognitions. Depression generates a specific cognitive triad — negative views of the self, the world, and the future. The thoughts feel utterly true: I’m worthless. Nothing will ever change. I’m a burden. Everyone would be better off without me. The dark night, in St. John’s account, generates anxiety about spiritual progress, but does not collapse the soul’s sense of its own basic dignity or meaning in the same way.
Look at duration and pattern. Spiritual dryness typically lasts days to a few weeks and resolves with normal spiritual practices. Clinical depression, by DSM-5 criteria, requires depressed mood or anhedonia plus at least four of the other symptom categories for two weeks or more, representing a change from prior functioning. The dark night, as St. John describes it, is measured in months and years and is recognized retrospectively by its fruits.
Look at the fruit. This is important. The dark night produces, over time, a more humble and less self-referential prayer life, deeper compassion for others, and a quieter trust in God. Clinical depression, untreated, produces erosion: of relationships, of work, of self-care, sometimes of life itself. If your darkness is producing erosion rather than fruit, treat it medically.
Treatment, Concretely
Depression is one of the most studied, most treatable mental health conditions in clinical psychology. The evidence is overwhelming and consistent.
Cognitive-Behavioral Therapy (CBT) identifies and restructures the distorted thinking patterns that depression generates and reinforces. It also includes a behavioral component — behavioral activation — which targets the inertia and withdrawal that depression produces. Meta-analyses indicate CBT is comparable in efficacy to antidepressant medication for moderate depression, with longer-lasting effects.
Interpersonal Therapy (IPT) focuses on how depression affects, and is affected by, the major relationships and role transitions in your life. It’s particularly useful when depression is precipitated by grief, conflict, or significant life changes.
Medication — particularly SSRIs and SNRIs — can correct the neurochemical changes that contribute to and result from a depressive episode. The decision to medicate is not a moral or spiritual one; it’s a clinical one. There is nothing un-Catholic about taking a medication that allows your brain to function. The same Catholic who would not refuse insulin for diabetes should not refuse an SSRI out of suspicion of psychiatry.
Behavioral foundations. Most depression treatment also involves restoring sleep regulation, structured exercise (which has its own evidence base for mild-to-moderate depression), and rebuilding social engagement. These aren’t side issues. They’re load-bearing.
In our practice we use CBT and behavioral activation as the primary modalities for depression, often combined with medication when symptoms are moderate to severe. We coordinate with primary care physicians and psychiatrists when prescribing is needed. And we hold space for the spiritual dimension throughout — because for our clients, faith is not a variable to be controlled out; it is part of the texture of their lives.
When to Reach for Help Immediately
If you are experiencing thoughts of suicide, plans of self-harm, or a sense that you cannot keep yourself safe — please reach out now. Call or text 988, the Suicide and Crisis Lifeline, available 24/7. Go to your nearest emergency department. Call a trusted person and ask them to stay with you.
The thoughts depression generates about death feel rational and conclusive in the moment. They are neither. They are symptoms — chemical and cognitive products of a condition that, with treatment, lifts. Most people who survive a suicidal crisis report, often within weeks of the crisis passing, profound gratitude that they did not die. The depressed brain is an unreliable narrator. Don’t trust its conclusions in the worst hour.
Spiritual Direction and Therapy Together
Many of our clients work with a spiritual director or trusted priest and with us. These roles are complementary, not competitive. A good spiritual director will not try to treat clinical depression with prayer alone, and a good Catholic therapist will not flatten the spiritual dimension of suffering into “just a chemical imbalance.” The integration matters because you are integrated — body, mind, soul are not separate compartments.
If you’re discerning between spiritual direction and therapy and you’re unsure which one to start with, here’s a useful heuristic: if your symptoms primarily affect your prayer life and your daily functioning is intact, start with spiritual direction. If your symptoms are affecting your daily life, sleep, energy, and relationships, start with therapy — and consider both eventually.
Finding Help in Denver
If you’re in the Denver metro area and struggling with depression, you don’t have to figure this out alone. Our practice in Greenwood Village offers individual therapy for depression in person and via telehealth throughout Colorado. We use evidence-based methods — CBT, IPT, behavioral activation — and we work collaboratively with you and, when appropriate, with your spiritual director or priest, to address the full picture of what you’re going through.
Depression lies to you. It tells you that nothing will help, that you’re beyond reach, that this is just how things are now. Those are symptoms talking, not truth. Most people who seek help for depression experience significant improvement, and many recover fully. The condition is treatable. The treatment works.
“The Lord is close to the brokenhearted and saves those who are crushed in spirit.” — Psalm 34:18
He is close. And sometimes, His closeness comes through the help of a trained professional who understands both the science and the faith.