Knowledge, within the depth-psychology corpus, is never a simple cognitive achievement but rather a site of perpetual contestation between modes of apprehension — discursive and participatory, natural and supernatural, morning and evening, human and divine. The Platonic legacy, traced through the Theaetetus, Meno, and Parmenides, establishes the foundational tensions: whether knowledge is perception, right opinion, or something requiring explanation; whether possessing knowledge and having it are the same; whether absolute ideas are knowable at all to minds bound by their own partiality. These questions ripple through every subsequent stratum of the corpus. In the Philokalia and Orthodox mystical literature, knowledge bifurcates into a relative, intellective kind and an authentic participatory gnosis accessible only through grace and ascetic practice. Aurobindo elaborates an ‘integral knowledge’ that overcomes the sevenfold ignorance by identity with the known. Jung’s commentary on Augustine’s morning and evening knowledge introduces the depth-psychological valence: as ego-consciousness expands, the luminous self-knowledge of origins darkens into rational mastery of the world. Von Franz brings this forward into the domain of synchronicity and ‘absolute knowledge’ as a transpersonal, acausal awareness. Across these registers, the recurring tension is between knowledge as intellectual possession and knowledge as transformative union — episteme versus gnosis — and it is precisely that tension which makes the term theoretically inexhaustible.