Maximoria

The realization that every single one of your memories, everything that has happened throughout your entire life up to this point, matter so much to you. Comes from the Latin word 'maximus' meaning important, and the Latin word 'memento' meaning memory (in this context).

I was listening to Theory of Everything 2 by DJ-Nate, and at the drop, I felt a strong sense of maximoria. Having a nostalgic attachment to the song only made the sense stronger.