1. It creates a picture of them being disturbed by a genrle summer breezeand helps to make spot sound idyllic.
2. Senses: sight: you will see all the beautiful things described. Smell and possibly taste: smell the wild thyme, wish you could taste some; the other wilde flowers have strong and attractive smells; touch: there is a gentle breeze that you will feel; the bank a warm bed, covered with wild plants; hearing: under the canopy: like to be sheltered there and it is quiet, but you might hear the breeze.
3. own answer
4a: the world of the Athenian aristocracy, involving Theseus, King of Athens and his courtiers (persons who give advice and live at the court.
4b. The world of the fairies, represented by Oberon, Titania, Puck and others
4c. The world of the ordinary working class people, in the form of Bottom (the weaver) and his friends rehearsing their play.
5. The play is set outside the city in a large wood. A such, it is outside the rules and laws of ordinary society, in a wild environment where nature (and its magic) prevails, rather than mankind.
6. True love (introduced by magic in one case)