I don't think too much, life is just such a simple thing.
As for what it feels like, I don't know. Since you don't know, then just let nature take its course. Occasionally, I can recall the days when we solved crimes together in high school, the days when we pretended to be each other to take risks for each other, and the days when we ran to Tokyo to find you... In short, they will never be forgotten.
Turn the clock and your mind can return to the past.
Conception: