sensory memory and the points of connection

I believe that our “collective experience” - shared emotions, sensations and information essential in establishing “the points of connection” between people are, for the most part, sensory memories rather than new sensory processes. The information registered in our brains usually is far richer than the mere reaction to the stimuli. The smell of old books transports me to the time when I had a large collection of theater books, my beginnings in the theater and more importantly, to the person I was then. Somewhere in those memories there’s a - most of the time - ”indescribable feeling” which is “familiar” to many of us - a point of connection.