The Dark Cave

Hi.

"-Master, they threw a snowball at me!

-And what did you do before that?

-Nothing.

-Sometimes nothing is enough."

The scene with the dark cave in ”Empire strikes back” is a good teaching about life.

As Luke is about to enter he asks "What's in there?" and Yoda replies "Only what you take with you" which leads up to that Luke straps on his weapons. Yoda then tells him he wont need them, but he continues on in with them. In the cave he meets Darth vader, we hear the iconic sound of the lightsaber and realize that Luke has drawn it first.
A short bout continues, where Luke cuts off Darth vaders head, only to see it transform into his own face.

What happens in the dark cave is an reflection of our own doing/being, much like the snowball.

If you do something, something will happen.
A coin has two sides, you can't have one without the other. 
Like newton's third law of physics states: To every action there is always an equal and opposite reaction.
There is no question about it.

The real question is: are you ready for the reaction?

Mtfbwy

Fugen