Answer:
In the darkness, the ghost talks to Hamlet, asserting to be his father’s spirit, comes to inspire Hamlet to revenge his death, a “foul and most unnatural murder” (I.v.25). Hamlet is sickened at the acknowledgment that his father has been murdered, and the ghost informs him that as he slept in his garden, a villain poured poison into his ear, the very villain who now wears his crown, Claudius. Hamlet’s worst fears regarding his uncle are confirmed. “O my prophetic soul!” he exclaims(I.v.40). The ghost encourages Hamlet to seek revenge, telling him that Claudius has polluted Denmark and corrupted Gertrude, having taken her from the pure love of her first marriage. However, the ghost pleas to Hamlet not to commit any acts against his mother in any way, telling him to “leave her to heaven” and to the pangs of her own conscience (I.v.86).