"In his speech, Denma Gonsa Rinpoche also tells his students that they should maintain guru devotion even at the cost of their lives, meaning to say that they should never go against their gurus nor abandon the practices that their gurus have given them, for to do so is tantamount to breaking samaya with their gurus".
These powerful and meaningful words of Kyabe Denma Gonsa Rinpoche, say unequivocally that a student cannot go against their teacher by abandoning a practice that the teacher has given them. For doing so is tantamount to breaking samaya with one's Guru. The heavy karmic consequences of this transgression are not just experienced in one lifetime, but are repeated over several or many lifetimes. As the 'Fifty Stanzas of Guru Devotion' (written by Ashvaghosha in the first century BC)states very clearly, it's nothing less than the Hell of Uninterrupted Pain(Avici)!
Hence, no one, not even my Guru's Guru,if he were still around, can tell me that the practice that my Guru has given me is wrong, my teacher is wrong, and so on. By asking me to go against my guru, he is asking me to go against my lineage,my guru's students and asking to turn my back on my goal of Enlightenment.
How can I forsake my Guru? How can I forsake my practice? How can I forsake my lineage? How can I forsake my goal?