Originally the sky was close to the earth, then it has risen up
The sky rose to its present height and/or the direct relations of the sky deity with the people were broken off when the sky or the deity was pushed up, touched or struck with a pestle or with a ladle during the preparation of food
To reach the sky (the Sun, Moon, particular star), people build a ladder or tower that consists of separate modules (bricks, logs, sticks, etc.). This construction collapses