Bel Tree, Bilva Patra
There are many references of Bilva Patra (Bel tree or Bel leaves as called in Hindi) and it is believed that the three leaves represent the three eyes of Lord Shiv and also the three Gun. He who places a row of lighted lamps at the root of Bilva tree with reverence becomes endowed with the knowledge of truth and merges into Shiv. He who worships the Bilva tree abounding in fresh tender sprouts becomes free from sins. The best offering to Lord Shiv as per scriptures is simple water and the Bel leaves.