Why do we blow the conch?
In temples or at homes, the conch is blown once or several times before ritualistic worship(pooja). It is sonetimes blown whilst doing aarati or to mark an auspicious occasion. It is blown before a battle starts or to announce the victory of an army. It is also placed in the altar and worshipped. When the conch is blown, the primordial sound of om emanates. Om is an auspicious sound that was chanted by the Lord before creating the world. It represents the world and the truth behind it. As the story goes, the demon Shankaasura defeated the devas, stole the vedas and went to the bottom of the ocean. The devas appealed to Lord vishnu for help. He incarnated as Matsya Avataara- the "fish incarnation" and killed shankaasura. The Lord blew the conch-shaped bone of his ear and head. The om sound emanated, from which emerged the vedas. All knowledge enshrined in the vedas is an elaboration of om. The conch therefore is known as Shanka after Shankhaasura. The conch blown by the L...