When it comes to movement, a plant usually has its whole body fixed to the ground, whereas an animal's body can move from place to place. A plant's movement is usually slow and is merely growth, whereas an animal's movement is relatively speedy about the place.
Once a belief takes root in you...
Do plants have a nervous system? They certainly respond less quickly and can't match an animal for sensitivity. Try getting a plant to change and it would usually more readily die.
Is your belief sensitive to your experience?...
But when it comes to nutrition, a belief is surely more like an animal... it's got to feed off something, even though it claims the opposite.