Final answer:
In Shakespeare's 'Hamlet,' asides are used to reveal Hamlet's internal conflicts and emotions, especially his reaction to his mother's actions and his doubts about the ghost.
Step-by-step explanation:
The aside in Shakespeare's plays often reveals a character's inner thoughts or a secret to the audience that other characters on stage are not aware of. In the case of Hamlet, asides are crucial for disclosing Hamlet's internal dilemmas and his profound emotions, such as his disgust towards his mother's actions and his contemplation on whether the ghost he has seen is truly his father. T.S. Eliot discusses the complexity of Hamlet's emotions and how they are a result of his mother's perceived guilt and seem to be inexpressible within the confines of the play's action.