2)
The document is a short poem written by Charles Bukowski in 2006.
It's about change and conformity, and the need always to reinvent yourself as an individual.
3)
"reinvent", "invent", "reinvigorate", they are in the form of present simple.
4)
"you" "your life" "yourself", the target of the message is the reader.
je suis pas sûre de la question 3 mais voilà
