>>14279896Old School Hermetic Psychology:
The mind is composed of the four elements, plus the fifth element:
Ego, emotion, intellect, will, consciousness.
Depression is a state of excess earth element (ego, routine), and deficient fire element (willpower).
In the winter when the fire element is weakest, people have low willpower, and thus they become depressed.
In the spring the Sun returns to the world and fill it with life and vitality, and people recover their willpower and passion for life.
Coffee increases willpower, so it can prevent depression in-the-short-term. But not in the long-term because you develop tolerance to the effects of the caffeine.
People also become depressed when their willpower is blocked. Imagine being a millenial growing up and you finally realize your career is fucked, and you will never get a girlfriend, and your social life is dead. You have no will to carry on in life, unless you find some purpose, thus you are depressed.
Health problems can cause depression as well, things like brain inflammation, and having low energies levels from a poor diet of fast food.