Acharya Prashant explains that duality is the existence of 'twoness,' which originates from the sense of 'I-ness.' This perception creates a distance between the observer and the object, leading to a sense of isolation, loneliness, and fear. He asserts that wherever there is 'the other,' there is separation and an absence of love. The world appears hostile to a small, limited self that feels the need to protect itself from a vast, unknowable universe. He clarifies that intelligence is not personal; it is silence, awareness, and truth, whereas thoughts belong to the individual person.