It is adapted from the "Yoga of Lady Niguma" which was taught to me directly by Geshe Michael Roach. Through postures and meditation, we will concentrate on the movement of prana through the nadis and chakras.
According to the Hatha Yoga Pradipika, there are 72 000 channels in the body through which life energy flows. They intersect at hubs referred to as chakras, meaning "wheels". These chakras are knots which prevent the rising of Kundalini.
Tibetan Buddhist practitioners of Yoga have their own unique interpretation of this system of subtle channels which you can read about here, here and here.
Geshe Michael describes the history of this series and the life of Lady Niguma here.
And teaches the first series in full here.
I hope you learn something today which is of help to you in your studies and in your daily life.
I look forward to seeing you next month for an Introduction to the Language and Literature of Yoga.