What is the significance of certain trees or leaves associated with Gods?

[Smt. Priyanka asked: Swami, most of us are aware of the significance of Tulasī leaves used in prayer rituals. But, can You please explain why Lord Shiva likes Bilva leaves and why Lord Vishnu likes Peepal leaves? Also, why is Lord Dattātreya associated with a fig tree? At Your divine lotus feet, Priyanka]

Swami Replied:- Trees indicate forests in which peace exists in climax. God gives message to human beings to live in peaceful atmosphere for good physical and mental health, which is the real wealth in worldly line as well as in Spiritual line.