Since mental illness is as common and invisible among the faithful as it is in secular circles, concern for mental health cannot simply be relegated to the secular sphere, especially during Mental Health Awareness month in May. I admit the topic of how and why Catholics experience mental illness might seem completely irrelevant to most Catholics. After all, many of us are too busy with daily life to actually step back and evaluate the state of our mental health objectively. Meanwhile, our fellow parishioners are just as concerned as we are that they appear healthy, happy, and whole in public.
Yet, I would wager that mental health issues are especially prevalent among the devout who are serious about their inner life because when people tackle deep inner issues which prevent God from working in their lives, their inner equilibrium is upset by stress, anxiety, and depression. This probably explains why most saints experienced profound periods of depression when they finally looked beneath their pious actions to face the reality of their own ingrained sin and subsequent need for inner purification.