This is a Russian animated video and it's a story about a little hedgehog (voiced by Mariya Vinogradova) and his friend bear cub (voiced by Vyacheslav Nevinniy). The two would meet every evening to drink tea from the cub's samovar, which was heated on a fire of juniper twigs. As they drank their tea, the hedgehog and the bear conversed and counted the stars together. One day, the hedgehog decided to bring raspberry jam. As he went to the bear to count the stars, he passed through the woods and found a horse standing in a fog, where the hedgehog can't even see his own pink paw. He is curious as to whether the horse would drown if it went to sleep in the fog. The hedgehog decides to explore the fog.
I think the meaning of this film is captured in the final thoughts of the hedghog. Most experience moving away from the familiar, and these experiences could also be those of an adult going off for travel or war, only to come home a bit dazed about what they have experienced. And the hedgehog thought, "Isn't it wonderful that we are together again" as he wonders about "the horse", the very thing that took him off his original path. In other words, "there's no place like home"