But that was the last time. That was…how should I say it? ... the one moment in my life when I was able to draw closest to Eri ... the one moment when she and I joined heart to heart as one: there was nothing separating us. After that, it seems, we grew further and further apart. We separated, and before long we were living in different worlds. That sense of union I felt in the darkness of the lift, that strong bond between our hearts, never came back again. I don't know what went wrong, but we were never able to go back to where we started from.
The narrator reflects on a pivotal moment in their relationship with Eri, depicting it as a rare occasion when they felt a deep connection, as if their hearts were intertwined. This moment of unity occurred in the darkness of a lift, creating a powerful bond that seemed to close the distance between them. However, this closeness was fleeting, as they later found themselves increasingly estranged from one another.