Actually it’s even deeper than that; depression is a collective spiritual sickness that comes because we live in a sick structure of life: misalignment with nature and God. There is no real happiness without real relations between each other, with the earth and with spirit. And we are subconsciously programmed on the basis of having some “void” or lack which chemical antidepressants just reinforce through “filling” it but not actually going to the root of the sickness