If it's real to me, do I have to prove it to you

Whenever I listen to a certain song, whenever I smell a certain smell or touch a specific type of texture, it reminds me of me, but in the old sense - a me that was before. Is it just me, or do some of the five senses become almost timeless? 

Getting Into You - Relient K always reminds me of a special sort of fucked up time in my life, and when I listen to it the feeling washes over me like an old skin that settles and fits perfectly as if I was just getting on a bike for the first time in 5 years - because everyone knows you can't forget how to ride a bike. The feelings are so surreal, so intense. It makes me feel like I was then and not now. It reminds me of that stage of immaturity, the innocence of crushes, first dances, confusing signs, moodswings, late-nights, and mixed feelings. It also reminds me of a certain special person in my life who learned a bit of the song and played a little of it for me. The song originally was given to me by somebody else, but it became his and mine in a whole sense, a sense that was different and that blossomed. So whenever I listen to this song, like I'm doing now, on repeat again and again and again ... I think of him. And that sense of us that feels so complete.