Answer:
Four leaves I have.
I love to twist and dance. Though wingless, I fly high up into the sky. What am I?
I am made by nature soft as silk; A puffy cloud white as milk; Snow tops this tropical crop; The dirtiest part of a mop.
I may seem real but it always turns out I was never there in the first place... you only see me during a certain resting stage.
I will go within you and destroy you. Only because you wanted me too
Runs over fields and woods all day. Under the bed at night sits not alone, With long tongue hanging out, Resting at your feet until we go for a walk