Feeling feelings from the past (help me explain this)

Centereddd

Okay so I was watching a TikTok & it was about the last day of school before Christmas break with movies, candy canes & you sitting with your friends & i thought about my school and my house and how it smelled and I actually FELT it like it was happening it lasts only a few seconds but I can do this with certain things or places of this makes sense.. it doesn’t happen with every memory or certain things. Like yah we can all have memories and feel happy but I can actually feel the feelings like I did as a child it feels like I can jump into that time frame if that makes sense.. does anyone know what I’m talking about?