Attachment and Loss

Anakin's fear of loss, especially following his mother's death and his premonitions about Padmé, drives much of his actions and decisions. His inability to accept loss as a part of life leads him down a dark path. Obi-Wan experiences loss (of his master Qui-Gon Jinn, the love interest Duchess Satine, and even Anakin himself) but accepts it as part of the Force's will, demonstrating the Jedi philosophy of non-attachment and acceptance.