What Hamlet is contemplating in his most famous soliloquy (To be or not to be) is the nature of life and what he should do with it. He is thinking about whether he should end it all (kill himself) or continue living and fighting for his revenge. His father was killed by his own brother and he wants to avenge the king's death but he is unsure how to do it.
He is torn between these two decisions, leading him to be stuck and ultimately do nothing for a while because he is indecisive. On one hand, he can go after Claudius who murderer his father, but on the other hand, he understands that that is meaningless and it won't bring him anything. However, in the end, he finally makes a decision - to go through with his plan.
Grievers. They are these huge terrifying gooey things that inject you with poison that will make you go insane.
Answer:
1. Emerson now outlines three main points concerning our use of nature's beauty: its medicinal qualities, its spiritual elements, and its intellectual properties.
2. This metaphor shows how humans and nature act differently. Emerson says that humans are “ashamed” of their own thoughts and feelings, and he then goes on to point out that nature is never “ashamed.” He calls for humans to return to their natural state and to stop overthinking and worrisome behaviour.
I do apologise, but I do not have the answer to your third question.