The Bakunawa, also known as Bakonawa, Baconaua, or Bakonaua, is a deity in Philippine mythology that is often represented as a gigantic sea serpent. He is believed to be the god of the underworld and is often considered to be the cause of eclipses.
It appears as a giant sea serpent with a mouth the size of a lake, a red tongue, whiskers, gills, small wires at its sides, and two sets of wings, one is large and ash-gray while the other is small and is found further down its body.
When the Bakunawa found out about this, it arose from the sea and ate the moon. The people were afraid so they prayed to Bathala to punish the creature. Bathala refused but instead told them to bang some pots and pans in order to disturb the serpent. The moon is then regurgitated while the Bakunawa disappeared, never to be seen again.
To keep the Bakonawa moons from completely being swallowed, ancient Filipinos would go out of their homes with pans and pots, and would make noise in order to scare the Bakonawa into spitting out the moon back into the sky. Some of the people in the villages would play soothing sounds with their musical instruments, in hopes that the dragon would fall into a deep sleep. Thus, the brave men of the village hoped that while the dragon was hypnotized by the musical sounds they could somehow sleigh the dragon. Although the dragon was known as a "moon eater" it was also known as a "man eater".