What does hamlet mean when he says we defy augury?

When Hamlet says "we defy augury," he is rejecting the notion of interpreting omens or signs to predict the future. This statement reflects his belief that one should not be bound by superstitions or fate, particularly in the face of uncertainty and chaos. By defying augury, Hamlet emphasizes human agency and the struggle to forge one's own path despite external pressures and the unpredictable nature of life. It underscores his internal conflict and the theme of fate versus free will in the play.