Ave, Mathematics is fascinating, and an excellent way to experience the mental plane. I've been studying Euclid's Elements in order to understand Geometry; in the Golden Dawn, one of the first things we do in beginning our study is meditate upon geometric figures. These figures are a doorway into certain mental states; unfortunately, this line of work isn't pursued with any real depth (at least, not in the Outer Order). I get the feeling that this is the case with most modern Western Magic, and that's a shame. You'd be hard pressed to find entrance into the old greek and egyptian schools without it. Geometry was a deeply important tool for growth of the mind and understanding in both Greek and Egyptian mystery schools-a quick bit of research will make that clear to any who wish to look-and with good reason. There are few better tools for gnosis of and development within the mental plane. The geometric figures are doorways to this plane; contemplating first the f...