Recollection

I can't be certain if it was a dream or a memory.Even after so many years, both my body and my mind seem to recall it too well. Yet some details...are not quite in concurrence with my day to day world.
The underground city,in the depths of the caves,was it the Pyrenees?...red...red walls..red reliefs on the walls... of animals..Upon touching them you are made aware of their entire history,their evolution,the way they felt,their spiritual place,all their sensations and experiences a=become a part of your data bank as if you had always known. Is it art?science?technology?
"We've been waiting for you and the others. We've been trying to reach out to you for decades,through dreams. It's time to come home to the knowledge of the Earth's ancestors. For years we've been trying to communicate with the artists,the creatives and the scientists of different times. Come home.Come back." Who are these people?speaking those words to me so casually? Why am I not afraid but rather elated?
It felt as if I always knew that red underground city had always been there,like I was discovering a remembrance. Where are they now?Why haven't they contacted me again?What do they want from me? Im ready.