What do you do to relive past memories?

As a genius I am, I listen to a specific song in a specific era or time. Like I listened to this 30 mins song edits audio in this 7 days school trip to North Indian hills and whenever I listen to that audio every feeling rushes back, the smell of hilly air, gossiping with my friend in the cold tent with hailstorm banging on the roof and everything. I started doing this from the age of 12 and whenever I listen to specific song, I go back in time and live that again. I make sure not to listen to those songs frequently so I maintain their special effects.

What do you do to relive past memories?
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