 Here he is pictured as a full-grown and bearded man with wings, as is his brother.According to Sigmund Freud, humans have a life instinct—which he named "Eros"—and a death drive, which is commonly called (though not by Freud himself) "Thanatos".This postulated death drive allegedly compels humans to engage in risky and self-destructive acts that could lead to their own death.