The "Prodigal Son" is a parable from the Bible, specifically found in the Gospel of Luke. It tells the story of a young man who asks his father for his share of the inheritance and leaves home to live a reckless life. After squandering his wealth, he finds himself in dire circumstances and decides to return to his father, hoping for forgiveness. Upon his return, the father welcomes him with open arms, celebrating his return with a feast. This story illustrates themes of forgiveness, redemption, and the unconditional love of a parent, highlighting the importance of repentance and reconciliation.