The topic of the class was on the scripture called Aparoksanubhuti by Shankaracharya, which is a non-dual text that Richard said was one of Guruji’s favorites. This text talks about mula bandha among many other things and I have included the sutra below that Richard spoke at length about.
Mula Bandha – 114
yanmulam sarvabhutanam yanmulam cittabandharam/
mulabandhah sada sevyo yogyo’sau rajayoginam
That which is the root of all existence and on which the cessation of the mind is based is called mulabandha, which should always be served since it is fit for raja-yogis.
Richard says that mula bandha is the cessation of thought so it cannot be something you think or try to do. It is more of a seva, which means service or to attend to and the idea is that mula bandha is treated like a deity and you do seva to the deity at the sacred temple sitting deep within the pelvis. The balancing of energies on the pelvic floor is the way to consecrate the temple and then the goddess serpent Kundalini will stand up when she wants to. The voyeur of the ego prevents the goddess from awakening because you have to invite her as the sacred flame at the root of the pelvic floor so that she inhabits the temple. Mula bandha according to Richard is not a mechanical thing but more like a devotional experience.
Excerpt from Article Richard Freeman and Mula Bandha over Coffee on a Friday Afternoon by Kino MacGregor