When I address God in prayer, I usually begin with “Heavenly Father” or “Dear Father in heaven” which denotes the fact that God dwells in the heavenly realm (Deuteronomy 4:39; Joshua 2:11; 1 Kings 8:27,30).
My favorite Bible tree? The tree of life, of course. Partaking of that tree, will cause me to live eternally, because of the perpetual spiritual food it provides (Genesis 3:22; Revelation 22:2). It’s sad that so many folks want to live eternally, but they don’t want to partake of the spiritual food that God has provided here on earth (Deuteronomy 8:3; Matthew 4:4), much less the tree of life in that heavenly realm.