This man examined the den inside, making sure that the owner was not at home.
No wonder the bear is a symbol of Russia, becoming a measure of heroism and the power of fairy tales.
What happened to the boy who found an empty bear den in the forest? First he examined the outside, then making sure that there was no bear, he also looked from the inside.
He found himself in a place where there was a semblance of a bedroom-cave.
He showed how much free space there is, and how the bear sleeps there.
Entering into a bear den is a big risk. Fortunately, the plan was carried out and the adventurer survived.