A. No difference at all. Form is emptiness, and emptiness is form. Whether it is form or emptiness is in the eye of the beholder. The problem is that we are so addicted to seeing things only as form that we can’t see them as emptiness.
It is like seeing a golden lion only as a lion without knowing that it is gold. The purpose of Zen meditation is to be able to see both the lion and gold, or form and emptiness, at the same time and to realise that the essence of the lion is gold, and that the essence, gold, never changes even if the form of the lion is changed into whatever other form.
All writing ©Boo Ahm. All images ©Simon Hathaway