In the biography of Trichen Ngawang Chokden composed by Changkya Rolpai Dorje entitled The Great Drum of the Melodious Speech of Realised Sky Farers (mKha'-spyod grub-p'ai gtam snyan rnga bo che), he states:

Earlier, a very vicious and evil spirit possessed a man from Draksep (a place very near to Ganden) and some unstable former-abbots, and monastic hostels also worshipped it by simply invoking and propitiating it. On the top of the Jangtse mountain a cairn for invoking spirits was also built. Seeing these as extremely inappropriate he (Trichen Ngawang Chokden) issued an edict to the assembly of monks that from the time of Je Tsongkhapa there had been no tradition of propitiating worldly spirits and protectors within the premises of this seat of learning and so, henceforth, nobody would be allowed to engage in such deeds. The cairn was also destroyed and the stones and earth of which it was made were taken back to the places from where they had been taken. The medium was invoked to come into trance and was then ordered not to come into trance henceforth.

Dholgyal too said, “If this is Tri Rinpoche's order, I have no choice but to accept." This evil spirit then fled to sTag-rTse-Zhol.