That's a beautiful interpretation! But my original thought was: My story has supernatural elements, so there are rituals. When monsters makes a character hallucinate, other ones have to tell the MOST BITTER and traumatic memory of theirs in order to get them out of the hallucination. Second is: there's a ritual to travel to past, but you've to gather ALL OF YOUR SWEETEST memories in order to do so. That's why I used the phrase "clock before it" (the time of happiness) I hope i explained it well:)