Guenther's isn't the best translation of this wonderful work, but he deserves a great deal of credit for being the first and for having pure intention and doing the best that he was able to at the time with the tools at hand. My only difficulty with Guenther lies in what appears to me to be an attempt to reconcile the existentialist philosophy of Martin Heidegger with the Dzogchen philosophy of Longchenpa. I could be wrong. He may simply have been borrowing existential terminology as being the closest European language equivalent and hoping to re-define the terminology as Dzogchen rather than trying to re-define Dzogchen as existentialism. ( )