Craig is the moon. He may sometimes have a dark and mysterious side like the waxing and waning moon, but he still shines brightly amongst those around him. His personality pulls people in as the moon does with the tides of the ocean.
Tweek is the sun. He spreads warmth and brightness to all that surround him. He brings joy when he opens up and shows you his sunshine but if you’re not careful with him, he may burn you.
The moon and the sun may seem to be different, but you can imagine one without the other.