The Brief Practice of Tendrel Nyesel
The Brief Practice of Tendrel Nyesel (Tib. རྟེན་འབྲེལ་ཉེས་སེལ་གྱི་དོན་བསྡུས་; Wyl. rten ‘brel nyes sel gyi don bsdus) is a terma revelation of Tertön Sogyal. It was revealed at a later date than the the long, elaborate sadhana of ‘The Profound Instruction of Tendrel Nyesel’ which is the original terma revelation, and was deciphered at the request of Jamyang Khyentse Chökyi Lodrö.
There is also another later revelation which is 'The Medium Length Practice of Tendrel Nyesel'.