In Haruki Murakami's novel 1Q84, the protagonist experiences an internal change, feeling that an unfamiliar presence is beginning to occupy a void within him. This emptiness predates any influence from a significant person in his life, suggesting that it has been a part of him for much longer than he realized. The arrival of this person serves as a catalyst, illuminating aspects of his inner self that were previously overlooked.

The mention of a "certain something" indicates a deeper emotional or existential exploration, where the character confronts feelings he had not fully acknowledged. The interaction with this person not only sheds light on his internal struggles but also compels him to reflect on the long-standing gaps in his identity. This interplay between absence and presence speaks to the complexities of human relationships and self-discovery.