What was the parenthetical aside in this sentence from Walden to enjoy these advantages i was ready to carry it on like atlas to take the world on my shoulders in never heard what compensation?

The parenthetical aside in this sentence from "Walden" is where the narrator likens himself to Atlas, indicating his readiness to endure hardship to enjoy the benefits mentioned. This aside serves to amplify the idea that the narrator is willing to bear a heavy burden for the sake of self-reliance and independence.