It could mean that he wants to prevent his son from seeing the monkey's paw.
An onomatopoeia is a word that phonetically imitates, resembles or suggests the source of the sound that it describes. Onomatopoeia (as an uncountable noun) refers to the property of such words. Common occurrences of onomatopoeias include animal noises such as "oink", "miaow" (or "meow"), "roar" or "chirp". I don't know if you read comics but sometimes someone will hit something and it will say "BANG" it basically a sound.
This means that he feels very drugged as if he had just taken an opioid or something. He hears a nightingale singing saying that the bird is spreading its happiness too much. He is also saying that he too is happy because he can hear the nightingale sing somewhere amidst the forest.
Answer: B. The speaker takes joy in climbing trees and imagining far-off places
