Dear JayK,
You can do it either way. SF helps focus the yin energy to break apart blockages and gives a added physical focus to the technique. Can it be done without the physical piece? You bet.
You want to develop the third eye more? Do the active exercises in Level Two, and the Moon and Sun Meditations from Level three when you have worked with the Level Two exercises a while and have developed your middle dantian/heart energy. The Aura Seeing course we published with Brian Osborne will provide actual training.
Much Love,
Shawn
