I just started an online writing course that lasts for the next ten weeks. As such, I will be posting some of my responses to our prompts, which may explain a deviation from my typical content, not that I have a "typical".
After days of turning this over in my head, here's the answer:
I don't know.
I can't find within myself The Thing that matters most to me in the world. I care deeply about many Things and they resist being put in order of importance so that I might determine how to accurately answer the question. Sure, I could pick one of the more Jesus-y ones to sound good, but this question is not about sounding good.
So I'm going to stray from my usual tendency to leave this as a draft until I can fill it in with clear thoughts all nice and pretty. Here you have it. This is all I have to say about it.