According to Victor Hugo, Hamlet's indecision makes the action appear to him to be at a distance -- as if in a gossamer dream.

This drama is stern. In it truth doubts. Sincerity lies. Nothing can be more immense, more subtle. In it man is the world, and the world is Zero. Hamlet, even full of life, is not sure of his existence. In this tragedy, which is at the same time a philosophy, everything floats, hesitates, delays, staggers, becomes discomposed, scatters, and is dispersed. Thought is a cloud, will is a vapour, resolution is a crepuscule; the action blows each moment in an inverse direction, man is governed by the winds.  - Victor Hugo, William Shakespeare, in The Romantics on Shakespeare, Penguin, London, 1992. p.350.