How Shamanism approaches Archaeology?

Most of us think that Shamanism represents the ways in which ancient minds see and perceive things. But then what about the anthology which we have achieved so far and preserve in museums not only tells us about their social culture but also addresses the social practices of our forefathers. Rock art is the most prominent art which hold significance in their social life by taking various forms of images - those carved in the form of Petroglyphs and Pictographs.

What Shamans have been portrayed today is all what they left behind. Bones, skeletal remains and various symbols helps us know that Shamans were so spiritual in nature that through the use of skeletal bones they used to travel in various worlds. Their archaeology can be visualized by only imagining their contribution to their social or religious life. On events like marriages or deaths, it is this rock-art that they used to consider. Whenever any one dies in there, they used to perceive that his spirit is eager to meet other gods and goddesses.

Shaman's 'underworld journey' is well known for the literature written in the light of evidence tells us that this journey caused the shamans appear to be dead. E.W. Nelson in 18th Report of the American Bureau of Ethnology mentions the following incident: An Alaskan Shaman revealed after been dead for two days that he traveled through a world where he heard the weeping of the living. He arrived to a village where he was taken to a house where there was fire burning some meat in a pot. He unintentionally understood that if he ate the meat he would not be able to return, therefore he continued exploring that spiritual journey and ultimately got back to his grave. His soul then re-entered his body after that which he was able to return to his village. (Nelson, p. 433)

That is why archaeology has revealed that they used Petroglyphs to help their spirits getting back to their bodies; otherwise one can't think any use of decorating stones other than this. If that means that Shamans use archaeology to strengthen their spirits, where have they gone now when their solid rock-art is rediscovered?