Illusion

An illusion need not be harmless or meaningless because it is deceptive. The shipwreck's apparent destruction is false, but the passengers' terror is real. Across the play, Shakespeare asks whether controlling people's experiences can help them understand the truth—or simply make them submit to someone else's wishes.

Illusion is the misleading appearance produced by that power: the passengers think their ship is destroyed, although it survives. Their fear and grief, however, are real. Shakespeare therefore asks whether producing a desirable ending justifies manipulating people on the way to it.