Final answer:
The soliloquy's concluding lines express Hamlet's internal struggle with conscience and fear of action, which ends as he notices Ophelia's presence.
Step-by-step explanation:
To paraphrase the soliloquy concluding lines from Shakespeare's 'Hamlet', one might interpret that Hamlet is grappling with intense introspection. Hamlet's stream of thought suggests that his conscience is causing him hesitation and fear, leading to inaction. He is acutely aware of the consequences that might follow if he trusts his ghostly encounter, stalling decisions and action out of a deep sense of worry and contemplation. This contemplation is cut short by the realization that Ophelia is present, indicating a shift from his internal turmoil to the necessity of engaging with the external world.