That's interesting, Friend! Lately I've been reading a book named The Lore of the Bard by Arthur Rowan, which discusses the Celtic ideas of life, and it says that life includes three cauldrons. "The cauldron is a ubiquitous theme in Celtic myth" he writes. It is an "archtypical symbol of a container used for transformation." The three cauldrons are filled with lore, craft, and passion.
The cauldron of passion encompasses joy and sorrow, and everything in between. This is what makes us human and makes life worth living. The cauldron of craft contains purpose and the application of skills. The Lore cauldron contains understanding and knowlege.
When people are born, their cauldron of passion is full, but the other two are empty. Over time, craft and lore are filled up, but the passion cauldron is emptied. The role of the Bard is to refill the passion cauldron and rebalance all of the cauldrons. This is done primarily through music.