The audio is easier to understand, but he uses a whiteboard quite a bit,
so it may be useful to check the video as well.
I have to say, I found this lecture somewhat bizarre.
There are many other lectures there that look potentially quite interesting:http://podcast.shin-ibs.edu
Note that, in the higher tantras, there is talk of a self and an I, even though in the lower teachings the absence of self and the absence of I is what is always proclaimed. - Tony Duff
If we have to have a soul, it might as well be vidya, it is after all, permanent, unconditioned, a knower, stainless, and free from the three realms. But If we don't have to have one, vidya still has these characteristics. It is our essenceless essence. - a certain Gemini
To educate the educated is notoriously difficult. - Jacques Barzun