Why did Hercules have to do the 12 quest and what happen to him after he finished his quest?

Hercules, a hero in Greek mythology, was tasked with completing the Twelve Labors as penance for killing his wife and children in a fit of madness, a punishment imposed by the goddess Hera. These seemingly impossible tasks were meant to prove his strength and heroism. After successfully completing all twelve labors, Hercules not only redeemed himself but also gained immortality and was ultimately accepted among the gods on Mount Olympus. His heroic deeds solidified his legacy in mythology as one of the greatest heroes.