Wings, legs... most importantly, the tail. The most important thing is not the horses, but the cart. It is the tail that rules and maintains the balance in the system. The most important thing is the useless, because the useful is only needed to serve the useless.
A squirrel in a wheel runs after its own tail. The squirrel runs after the light, the squirrel seeks enlightenment, but the light is itself. Light is the reverse side of the squirrel itself, to make sure of this, you should not run away from yourself, but only for a moment to look inside.
Hands! Legs! ... The main thing is the tail! The point is that the most important things are very obscure. What seems to be the main thing only distracts attention from the main thing, which is somewhere nearby. The main thing is not the sun or even the earth, but life on the planet Earth.
Form and content are not whole entities, but only the unity and struggle of opposites. True integrity comes from implementing a system of checks and balances by adding a third entity to the system, called the GOAL.