This is just this wisdom to this

Its from the end of the second sequel of Lord of the Rings.
Sam's speech.
The one that really mattered.

Frodo: I can't do this, Sam.
Sam: I know. It's all wrong. By rights we shouldn't even be here. But we are. It's like in the great stories, Mr. Frodo. The ones that really mattered. Full of darkness and danger, they were. And sometimes you didn't want to know the end. Because how could the end be happy? How could the world go back to the way it was when so much bad had happened? But in the end, it's only a passing thing, this shadow. Even darkness must pass. A new day will come. And when the sun shines it will shine out the clearer. Those were the stories that stayed with you. That meant something, even if you were too small to understand why. But I think, Mr. Frodo, I do understand. I know now. Folk in those stories had lots of chances of turning back, only they didn't. They kept going. Because they were holding on to something.
Frodo: What are we holding onto, Sam?
Sam: That there's some good in this world, Mr. Frodo... and it's worth fighting for.

Its either this or that.

Do you know what so good about urgent problems that cries out for your attention, which if you really think about it, is a small problem which would not matter when you look back at it 10 years later?

It keeps your mind away from big problems which there is no apparent solution to.