YODA: Careful you must be when sensing the future, Anakin. The fear of loss is a path to the dark side.
ANAKIN: I won’t let these visions come true, Master Yoda.
YODA: Death is a natural part of life. Rejoice for those around you who transform into the Force. Mourn them, do not. Miss them, do not. Attachment leads to jealousy. The shadow of greed, that is.
ANAKIN: What must I do, Master Yoda?
YODA: Train yourself to let go of everything you fear to lose.
The fear of loss is a path to the dark side because you become willing to do just about anything to prevent yourself from feeling that pain. That’s why Jedi aren’t supposed to fall in love or get married—love will make you do crazy stuff. That being said, though, how exactly do you train yourself to let go of everything you fear to lose?