I was startled by what Kana said and couldn't help but stand still for a moment.
This is just a still frame, but it looks like it's moving a little. What an interesting picture.
In Japanese archery, you need to stand still for a moment with the bowstring fully drawn back before releasing the arrow. Is it the same in Western archery?
Everything is quiet and stopped. The world is still and everything is at rest.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.