Visible Spectrum?

One of the off the beaten path things I enjoy reading are accounts of NDE's (Near Death Experiences). Call it New Agie - call it strange - call it normal - call it curiosity - call it trying to get over my fear of dying. The last thing mentioned on the list is where looking into them came from. Now I just find it interesting.

Yesterday I read a bit of one and here I quote:

"Just a little ways off I could see a bridge with someone standing on it. Beyond the bridge, I saw a golden city with towers like European castles. The whole city seemed to be shining with light that shot up into the sky like a giant searchlight. I could see that some of the domes of the city were red, others were gold, and a few were blue. The gates and walls of the city seemed to be made of bright blue, red, and violet lights." (Randy Gehling)

And what I wonder here is could these colors have anything to do with our visible spectrum or the color related to wavelengths? I don't actually propose a theory here... just thinking there might be a connection... just thinking, that's all.