It is the morning sun and the dark sky and the grass, and the black crow flying, and the snow on winter.
Crivel is whatever you can think of. It can be used to replace whatever word you want, but don't overuse the crivel. You have to learn to appreciate the crivel.
Use crivel in everyday sentences:
1: You must be one with the crivel before you question the crivel.
A funny and bubbly girl. You wouldn't think she's like that. She's very nice too people. But very funny! When she talks, everybody pays attention because they can't understand what she's saying. Sometimes she babbles a paragraph or so without understanding a singe word.