The renowned philosopher delved deep ______the intricacies of human consciousness, shedding light _____the enigma of self-awareness.

The renowned philosopher delved deep __the intricacies of human consciousness, shedding light _the enigma of self-awareness.

within; towards

through; onto

amidst; against

onto; with

"The renowned philosopher delved deep within the intricacies of human consciousness, shedding light towards the enigma of self-awareness."

Within suggests exploring the depths or complexities of human consciousness.
Towards indicates the philosopher's focus on shedding light on the enigma of self-awareness.