Hindu Puja:

Elements



Senses Function
Ears Bells awaken the spirit, help worshiper to focus
Nose incense Scent and spirit of God, permeates one's being, lingers after death
Eyes fire presence of the divine within self
Taste / Touch flowers / food concept of reciprocity: in giving, one receives.
water elixir of life; sustains, refreshes, purifies

Also used:
sacred thread symbol of rite of initiation
Sandalwood Paste, or other fragrant objects

perfume for God, anointing of God
betel nut sometimes symbolizes God / Brahman

After Puja:
prasad partaking in food Symbolic sharing / receiving of gifts from deity.
arati touching feet of deity, afterwards touching one's own forehead

symbol of submission, symbolic prostration before deity