Always look to evolve and transform yourself as you learn and try new things on your path. And if you start feeling a tad on the cranky side, play a bit o' music and let those negative energies slip away.
Judgement - The "looking back over my life and let's see what can be improved" card. We should always be evolving and moving forward on our paths, awakening and transforming ourselves. Decide what works and let go of what doesn't as we move along the way.
Cerberus - the Hell Hound that guards the gates to the Underworld so no one escapes. He also has 3 heads. Hagrid had one named Fluffy that kept watch over the entrance to the Sorcerer's Stone. But all you had to do was play him a bit o' music and he fell asleep.
My Tarot Card Practice. I have been studying Tarot for over 20 years now and am still learning new things daily.