I believe such illumination comes if you're open to the surprises the universe throws at you. You must be able to let go of the past, whatever success you may have seen, whatever your comfort, whatever your habits. To me, that's the key to loving life: Enabling yourself to step bravely into the unknown. Only there will you find yourself again.
It's challenging as an actor to let go but I had some pleasure out of it too. To not have the effort of having to present myself is quite liberating.
For me, acting goes to a special place; it's almost mystical. You have to let go of what you think is good; it's a jump into trust, and trying to reach without wanting too much.