fighting injustice.

Since I read this on Twitter a couple of weeks ago, I haven't been able to stop thinking about it:

"We get to put more than just a toe in the water fighting injustice; God dares us to grab our knees and do a cannonball."

~ Bob Goff

What does this look like, in real life? What does it mean to jump all in to the fight, to make that kind of splash?