In Dzogchen three are four arts of liberation of thoughts:
gcer-grol – liberation through bare attention
shar-grol – liberation as soon as it arises
rang-grol – self-liberation (self-liberation through seeing with naked awareness)
ye-grol – primordial liberation.
In Dzogchen, thoughts and dualistic perceptions are allowed to self-liberate, dissolving into the vast, non-dual awareness of rigpa.