heart wrote:There is something my Guru sometimes say that goes more or less like this; "Rigpa is difficult to realize because it is to close, to brilliant and to easy." Kind of sums it up nicely.
Yes, but that is a paraphrase of Mahamudra instruction from Karmapa Wangchuk Dorje, not Dzogchen instruction. It's intention (as a pointing out instruction) is to say that ordinary people do not recognize or appreciate ground mahamudra because of these four qualities (too close, too easy, too profound, too excellent). I have never heard it used to argue that Dzogchen is difficult to practice/realize.