Hi Elias,
This is one of my favorite topics!
I believe the "superlight" can be and is resisted by the nucleus of an atom. I'll explain more later.
That picture on that site with the Japanese writings says that is a GRAVITON. I don't necessarily believe there are gravitons but that gravity is an effect of interaction of the aether and the nucleuses of atoms.
I think there is info about Dr. Hideo Seki in Dr. Hans Nieper's book Revolution...highly recommended book. I'm not very familiar with Milewski.