Obsidian mirror in magic

[Berserker]

I have an obsidian mirror. I know what it is for, but I wonder if it can be used in visualization?
There are people who can visualize well with open eyes.
I ask you, would it work that I'm not doing the work with my eyes closed, but projecting the image onto the surface of an obsidian mirror about half a meter away? I can also more easily imagine the vibration of runes in a mirror a little further away from me when, for example, I want to vibrate a rune into an aura.
I read about the obsidian mirror as a gateway....
I would be interested in your opinions.

 

[Ol argedco luciftias]

Do whatever helps you. Whatever works for you.

 

[Eric13]

The mirrors are good to practice with. Especially if charged during a full moon. They will hold energy and make things a little easier. They're useful for scrying.