Question 1: Do your visualizations have to be vivid to work with V-MILD/ VILD?

For example, I close my eyes and I see darkness. I know what everything looks like, what is going on and what is being said. But I only actually see the darkness of my eyelids. The closest thing I can compare it to is a person that has become blind after being able to see.

Question 2: Can V-MILD/ VILD still work for me?

All of your answers and insight are imensly appreciated!