Liberation is possible because of the transcendent quality of awareness beyond the Five Skandhas?

I have been inquiring about the teachings including translations of scriptures with regards to 'Awareness that knows' here , here , here .. Specifically, in reference to the explanations given by most of the forest tradition, Ajahn's from Thailand and Translations by "Thanissaro Bhikkhu" who is also from the same tradition and has translated the bulk of pali cannon... It seems to me that the illustrations given by the forest tradition have a somewhat distinctive view about this, for example, In this talk Ajan Amaro said Liberation is possible because of the transcendent quality of awareness beyond the Five Skandhas. He said ...That which knows the five Skandhas is not intrinsically tied to the Five Skandhas. that which knows is not part of the five Skandhas / i.e. the five aggregates or heaps: *form (or material image, impression) (rupa), sensations (or feelings, received from form) (vedana), perceptions (samjna), mental activity or formations (sankhara), and consciousness (vijnana).* Could you please expound or explain further, how is this Awareness lokuttara and beyond the Skandhas? Many thanks