According to Osho, when people enter a crowd they fall into the 'crowd mind'—the lowest level of consciousness—which reduces them to cogs, demands conformity, and punishes uniqueness. Fear of exclusion and the seduction of shared power dull intelligence, sensitivity, and responsibility, awakening barbarous instincts. Only a rebellious, individuated spirit resists this psychological slavery and lives rather than merely survives.
In a group, people stop being themselves and copy the crowd to feel safe, which makes them do unkind, thoughtless things.