Prophet Yunus (Jonah, peace be upon him) was a messenger sent to the people of Nineveh in ancient Mesopotamia. When they rejected his message, he became frustrated and departed without Allah's permission, boarding a ship that encountered a violent storm. To lighten the vessel, the sailors cast lots, and Yunus was thrown overboard, where he was swallowed by a great whale (or large fish). In the depths of darkness-within the whale, the sea, and the night-he made his famous supplication from the depths of his being: "La ilaha illa Anta, Subhanaka, inni kuntu min al-zalimin" (There is no deity except You; exalted are You. Indeed, I have been of the wrongdoers) (21:87). This profound acknowledgment of Allah's uniqueness and his own mistake led to his deliverance. Allah commanded the whale to release him onto barren land, where a gourd vine grew to shelter him. He then returned to his people, now numbering over 100,000, who had repented and believed. The Quran honors Yunus as one who "was among the messengers" (37:139) and states that had he not prayed, he would have remained in the whale's belly until Judgment Day. His story powerfully illustrates Allah's mercy, the efficacy of sincere repentance (Tawbah), and that no situation is hopeless when one turns to the Creator.