The tomorrow speech is probably the most famous speech in the entire bloody language, and so far every time I do it I feel I am proceeding into a hallowed moment with its requisite preceeding pause rather then an actual personal experience. Part of the difficulty I find in it is its seeming disjointed nature. There is a logical leap between the first two lines "She should have died hereafter/there would have been a time for such a word" and the following "Tomorrow and tomorrow and tomorrow..."
Its odd to me how tomorrow, which feels to me to be a positive form of time, (well this is of course debatable, as tomorrow is uncertain, except for death, the only certainty) gets the strange dark colouration. Maybe I'm thinking of the Annie song, when the sun will come out, that tomorrow is somehow hopeful. On the other hand, he says he gins to be a weary of the sun very shortly after. Lady M says, we will have the future in the instant. The future is promising. We build our hopes for the future. We want to leave the present.
All of this relates to time, and time is a key theme in the play, mentioned in its variant forms multitudinously through out the play. This speech is perhaps an expolaration of time and human relationship to it.