Learn
You find some white feathers and you want to learn more about where they came from and what they're made of.
Picture yourself in a library poring through huge tomes on birds, feathers, and the history of white birds. You want to learn everything you can!
しゅう
なら
None
You learn that you should tie these white feathers to your shoes (しゅう). You do it before you learn what it will do, and then suddenly you're jump-flying out of the building.
Oh geez, oh no. You better learn how to control these shoes before you—CRASH!!! Welp, you just shot through a plane. You need to learn more before you act next time.