After finishing his duties as a king, Satyavrata lived a quiet life with his wife on the banks of a river. Once, while bathing in the river, he came upon a little fish who could speak. "Save me from the big fish, O Mighty King, and I will save the world."
Feeling sorry for the fish who talked big, Satyavrata took it out of the river and gave it shelter in his earthen pot. The next day, the fish had grown in size and did not fit in the earthen pot. So, the fish had to be moved to a large urn. As the days passed, the fish kept growing in size. Satyavrata had to move it from the large urn to a pond, from the pond to a river, and from the river to the sea.
As the fish went across the sea, beyond the horizon, it told Satyavrata, "Soon the heavens will burst and torrential rains will flood the earth. The sea will rise and submerge the land. When this happens, collect the seed of every plant and a pair of every animal and wait for me on a boat with your wife."
Realizing it was no ordinary fish, but God Vishnu himself, Satyavrata did as he was told. Floods arrived and the great fish appeared before Satyavrata, bigger than before, with a horn on its head. Satyavrata tied the boat to the horn with Adi Sesha (who is the king of all serpent deities and one of the primal beings of creation. In the Puranas, Shesha is said to hold all the planets of the Universe on his hoods and to constantly sing the glories of the god Vishnu from all his mouths. He is sometimes referred to as Ananta Shesha which translates as endless-Shesha or as Adishesha which means the first Shesha. It is said that when Adishesa uncoils, time moves forward and creation takes place. When he coils back, the universe ceases to exist.) as the rope.
The fish then towed the boat through the great deluge to the only piece of dry land, the peak of Mount Mandara. There, Satyavrata and his wife waited for the waters to recede. With the seed of every plant and a pair of all animals, he would establish a new world. (Bhagwata Puran)
~courtesy Myth = Mithya by Devdutt Pattnaik
This story in Hinduism is similar to stories found in Christianity, Islam, and Ba'hai faiths. This is just a small example that all religions have the similar basics. Yes, there are tweaks made to suit own perspective. It's humans who have demarcated.
Let there be peace and no wars based on religion.
