Collecting Memories

There is really something quite fascinating when it comes to remembering things.Nostalgia- the burning, hazy sensation you get in your head that spreads throughout your whole body and even your eyes become captivated and try to recreate the images you once saw. I love to remember things although it makes me a bit depressed and I start to dwell on things that have already passed; the “innocence“ I once possessed, the blatant but accepted ignorance I had towards the world and all the shit that actually happens in it. I could sit in my thoughts forever, just wishing, and never really getting anywhere. But, what I find more depressing than dwelling in my memories is dwelling in others'. I know that might sound odd, but somehow when someone tells me a memory of theirs my head gets kind of silly: “So this is my memory now?“ And I start feeling that hazy nostalgic feeling, and my eyes blur and try to recreate that other person's memory sometimes through their eyes and sometimes as if it was really mine all along. It's frustrating at times, and I just want to get in their head and feel their memories as my own.
For example, today my lovely younger sister was confiding in me about her first boyfriend (which is kind of adorable, but being the cynical person I am, it makes me a bit sad because I know that she'll go through a lot of unnecessary relationship shit as she gets older). I was looking deeply into her big blue eyes and I, as weird as this sounds, was lost in them. It was a nice feeling of detachment, but as soon as I stopped recreating a memory in my own head that was actually hers, I longed to bang my head into hers and copy+paste that memory into my mind. I often feel this way, and I don't particularly know why. One thing I do know is that I really wish I had a Pensieve.