Hi brothers and sisters:-)
I have encountered this too. At the end of the book “the words of my perfect teacher” by Patrul Rinpoche there is a glossary. There it is explained this way: “complete enlightment, beyond both samsara and nibbana, in non of them abiding” (i translated this from my Dutch book so maybe in English version it is a bit different).
This is also the core of dzogchen. The idea is, with real liberation, complete enlightment, mind does not abide anywhere, not in samsara, and not in nibbana. These Mahāyāna schools seem to think that for an arahant mind does abide in Nibbana, i.e. abide in some bounded fashion to peace.
One says this is not the case with the non-abiding nibbana of Mahāyāna.
Also Gampopa (tibetan kagyu school), refers to this one-sided nibbanic peace of the arahant, in chapter 17, the perfection of wisdom, The Jewel ornament of Liberation.
There it is said, to reach the ultimate goal, non-abiding nibbana, one must combine method with wisdom. One must committ oneself to perfecting the paramita’s like generosity, ethical behaviour, patience etc. and not alone focus on perfecting wisdom.
Well that’s what we do right? That’s what people did who became arahants. So, i do not really see what is the problem.
If one focusses alone on perfecting wisdom, so is the idea, one will become bound to nibbana, bound to a state of peace. As a result one will be bound to samsara for 84.000 kalpa’s.
I talked to a dzogchen practioner too and he also speaks constantly about going beyond nibbana…i tell him, i belief that is not correct because there is no beyond nibbana. To think one can go beyond nibbana one must have a incorrect understanding of Nibbana. That’s my opinion. Curious what you think.
When we talk about nibbana, how can there be any attachement, any bonding?
If there would be a bonding to peace, how can that be called nibbana? I think they do not understand the concept of Nibbana.
Those dzogchen practioners, and mabye other mahaynist to, also treat nibbana and samsara as a duality and they teach the non-dualistisch path. I think they do not know what nibbana means.
I respect all schools of buddhism but i belief nibbana is not understood correctly here.
Hope this is of use.
Siebe