1. Extreme of eternalism, rtag mtha', nityanta
2. Extreme of nihilism, chad mtha', ucchedanta


1.Extreme of samsara (cyclic existence), srid pa 'khor ba'i mtha',
2. Extreme of nirvana (peace), zhi ba myang 'das kyi mtha'


1.Extreme of existence, being, yod mtha', astyanta
2. Extreme of non-existence, non-being, med mtha', ananta