If it is twice the height of your knees, it is a perfect hiding spot in a game of Hide and Seek, if it is three times the height of knees, you have a chance of becoming Atlas as you can position yourself in a similar manner as depicted in Classical art.
A spot that is twice the height of your knees would be an excellent hiding location in a game of Hide and Seek. If it's three times the height of your knees, you might be able to assume the role of Atlas by positioning yourself in a manner similar to how he is illustrated in Classical art.