Every Gelukpa lama that offers tantric initiation then gives the
Six Sessions Guru Yoga (Tun Druk) teaching, and it is a required practice.
Khen Rinpoche Geshe Lobsang Tarchin wrote in his introduction to the Six Session Guru Yoga book that “compared to all practices, including tantric practices, this is the most important practice”.
This practice was written by a very prominent illustrious beautiful lama, called the first Panchen Lama, Lobsang Chukyi Gyeltsen. He lived 1570-1662.
It is a tantric practice, but it has parts which can be shared. In this teaching
Lama Dvora extracted the open part from the text, and arranged in a way that people who are not initiated into Tantra can make it into their daily practice, and it will be a very very powerful practice.
Based on teachings by Khen Rinpoche Geshe Lobsang Tarchin