Light is something you can never reach. It's enough to marvel at his brilliance. There's no need to grab it and keep it, because you can't catch it anyway. You Yi Xi wanted to enter Song Nian's world, only to discover that it was already too crowded. The things they'd said as children had quietly slipped away with the years...
Theme: Thank you for appearing in my youth. Even a brief, fleeting bloom can be beautiful.