According to Osho, some unhappy people become fat because they try to fill an inner emptiness with food; gluttony becomes a crude substitute for meaning, love, and purposeful activity. Many so-called mahatmas, having renounced worldly roles and relationships, are left with little to do but preach and eat, so their bodies expand while their spirits remain unfulfilled—fatness revealing compensation, not sanctity.
When people feel empty inside, they often eat to feel full; some ‘holy men’ do this too because they gave up normal life and mostly just talk and eat.