Firstly....though it's tangential to what I was talking about I nevertheless wish to state this, as we may have a different understandings of how to go about "looking for" emptiness.
Those who assert emptiness need not create anything at all, or look for some exotic object to negate, to see or feel this quality in their mind; their mind, all by itself sees and feels, smells, hears, tastes, thinks and, does each of these things in a totally deluded way so....just look at your own mind; don't make anything up at all....just examine that.