A unique interpretation of Patanjali's Yoga Sutras is on the Atma Jyoti Blog, in a commentary by Swami Nirmalananda Giri. This article delineates the fundamental vrittis, or waves, of the mind. Here is an excerpt below:
"However, there is a whole other way of looking at these modifications, and that is held by both Vyasa and Shankara. It interprets klishta and aklishta as “tainted by the kleshas” and “untainted by the kleshas.” The kleshas are: ignorance, egotism, attractions and repulsions tow