Revenge and its costs
The ghost demands revenge, but the play shows what revenge actually requires: deception, collateral damage, and self-destruction. By Act 5, the revenge is complete and everyone is dead. Shakespeare forces you to ask whether it was worth it.
Appearance versus reality
Almost nothing in Elsinore is what it looks like. Claudius appears to be a legitimate king. Hamlet appears to be mad. Polonius appears to be wise. The gap between surface and truth drives every major conflict in the play.
Paralysis and indecision
Hamlet knows what he should do almost from the start, but he can't make himself do it. His paralysis isn't weakness—it's the result of thinking too hard about consequences, morality, and certainty. The play treats this as both noble and fatal.
Corruption and political power
Claudius's Denmark is rotten from the top. He gained power through murder and keeps it through manipulation and surveillance. The court around him is complicit, and the corruption spreads outward until it destroys the whole state.
Death and mortality
From the opening ghost to the final pile of bodies, death is everywhere. Hamlet's famous soliloquy about existence forces the question of why anyone endures suffering at all. The play treats death not as a solution but as the unavoidable destination of every choice made in the play.