Yes yr right
It increases yr imagination, creativity, problem-solving abilities, and emotional well-being .
What is a shore !
(jeopardy kind of answer)
I think its informal because cool isn't a formal word
The whole poem talks about the speaker's description of the serenity and peace of the Lake Isle of Innisfree. In the poem, the aspects of modern life that the speaker likely wishes to free himself seems to be the hustle and bustle of the city. He/she wanted to find peace and quiet by going to the Lake.