Nor is his overwhelming grief caused by the loss of the crown. .
In fact, it was the moral shock of the sudden hideous revelation of his mother's true nature, falling on him when his heart was aching with love. Within a monthO God! a beast would have mourned longer?(156) she married again, and married Hamlet's uncle, a man who is utterly disgusting in his eyes. His whole mind is thrown into a state of confusion because of the situation at hand. Hamlet does not know what to do, and so his mind becomes poisoned. Facing this tormenting situation, Hamlet saysBut break my heart, for I must hold my tongue?(165) that is, he can do nothing.
In the second soliloquy in Act II, Scene 2, Hamlet is in an even greater state of confusion. He is beginning to doubt the identity and truthfulness of the Ghost, therefore, he is not taking any action against Claudius. Furthermore, he believes that his passionate expression of grief in not positive action; indeed, it inhibits action. Thus, Hamlet believes himself to be a coward for not taking any action against Claudius. He pours out a passion of self-reproach for his delay in seeking revengeance when he accuses himself of beinga dull and muddy-mettled rascal, peak / Like John-a-dreams, unpregnant of my cause, / And can say nothing?(2.2.574-576). He goes on to accuse himself of lethargy and even villainy. Hamlet asks himself in bewilderment what can be its cause, lashes himself into a fury of hatred against his enemy when he exclaimsBloody, bawdy villain! / Remorseless, treacherous, kindless villain?(587-588), and then checks himself in disgust at his vain emotion. Hamlet then quiets his conscience for the moment by trying to convince himself that he has doubts about the Ghost, and by assuring himself that, if the King's behavior at the play-scene shows but a sign of guilt, heknows his course?(606). .
For Hamlet's self-reproaches, his curses on his enemy, and his uncertainty about his own inaction, one and all imply his faith in the identity and truthfulness of the Ghost.