If i recall correctly , astronauts at Baikonur, follow a lot of traditions before their launch, planting a tree, watching a specific movie, visiting Gagarin's p

If i recall correctly , astronauts at Baikonur, follow a lot of traditions before their launch, planting a tree, watching a specific movie, visiting Gagarin's place , every time and more or less there are other "habits" like those for the astronauts in USA, and even the famous peanuts for unmanned vehicles. So maybe it's a mix of tradition and superstition.