Here is my "Dao of the Day": We don't know how humans can walk on two feet.
Birds can walk on two feet but they have huge feet relative to the size and weight of their bodies. Humans have at least six different mechanisms which allow us to balance, a few of which we understand, like fluid in our ears. But basically walking on two feet is still a mystery. When my students are trying to learn something new that seems difficult I remind them that they have already mastered walking, and that's a skill way beyond anything I can teach.