What with the resent death of his father and the "o"er hasty marriage" of his uncle and mother, Claudius possibly makes the situation worse by denying Hamlet's return to his asylum:.
"Denmark's a prison, in which there are many confines and dungeons," reflects Hamlets thoughts to Claudius's denial, Hamlet sees Elsinore as a prison rather than a sanction. As a university student, Hamlet is used to nothing but thought and contemplation and doesn't seem to be happy in the environment of politics.
Unbeknown to Hamlet, his next task would soon bring him to be caught between being a man of thought and a man of action, a complete change in the presentation of his character. And as the play progresses Hamlet's thought and reason takes on great form.
Hamlets' character shows him to be able to think, but not to act. He has made a soliloquy on life, gave advice to the players and moralised on Yorrick's skull, but was a slow avenger of his fathers" death - this is the true Hamlet.
Certain facts are clear about Hamlet. He is extremely intellectual; his speech and interests express this, and even though as much as he loved his parents, university had been his chosen place until the Ghost bid him to seek revenge.
He seems to be philosophical, he studies the meanings of his life and thoughts, and because he cannot have his revenge according to his own refined ideas, he declines it altogether. So because of his own conscience and morals he doubts to trust both the suggestions of the Ghost:.
"Thy uncle stole leperous distilment," and the successes of his own experiment with the effect of the players, instead of acting upon them. Yet it seems as if Hamlet is aware of this "weakness," of feeling he can't act upon impulse because to him not all the elements "add up." Hamlet's character shows him to need to resolve everything by contemplation first, possibly because of his personal fears of misjudging the situation and making a mistake.