The story of origin of tides or waves in sea as per Hinduism
is associated with Sage Aurva. The story is found in the Vamana Purana.
Legend has it that Sage Aurava, performed intense
meditation, or Tapas, for several years. The intense austerities and rigours
penance of the Sage resulted in the creation of Vadavagni – a sacred fire.
Brahma entrusted Saraswati River with the sacred task of
depositing the Vadavagni in the sea.
The sacrificial fire of Sage Aurava was deposited in the sea
by Saraswati River. Here it took the form of a horse and lives forever. Regular
exhalations of the horse result in waves, or tides, in the sea.