[Effopsytupt]

You may be surprised to know that these words from this Theravada teacher match perfectly with the Vajrayana schools of Mahamudra and Dzogchen

Not much of a surprise to me that you should think that, having originally been a Vajrayana practitioner myself and familiar with those practices you mention, before transfering to this particular Theravada Thai Forest tradition. I feel it is much more relevant to my practice and understanding at this point in time and cuts through any pointless add-ons.

Does one really need to speculate about 'the inseperability of nirvana and samsara' if ones mind has knowledge of samadhi/emptiness/ stillness/clarity /wisdom and awareness ? I doubt it, because maybe it all just becomes unnecessary terminlogy and mental proliferation distracting one from the immediacy of here and now.

Anyway, sorry, back to topic !