Err, I'll be a human.
I'll make the choices to know when I should be heavy as oak, and when to be light as dogwood. I will choose when to sweep against the crevice of our lifetime, as water in a steam, and when to to still like the placid lakes in winter. I will be cold as ice, yet hot as fire. Flexible as gold, and immovable as a mountain.
You have to know when to take a shape, a form, a study, a conscienceness. The world is not in black in white.
A tree that is flexible is cut. A rock that is still is smashed to gravel. The wind that flows freely, can even succumb to the strength of it's surroundings.
A single study of life is foolish as a complete disregard for it's shapes. Keep an open mind, and know when to take form, or you might get stuck.