Shamanism works with the spirit of the soul.
To gain knowledge by working with spirits of nature; rocks, plants, water and working with spirit animals.
For the Shaman everything is alive and carries information.
Some of the various works of the Shaman are
Soul Journey to assist in psychological issues that are preventing you to move forward
Soul Extraction by removing misplaced energy, like negative energy that stored in your body.
Soul Retrieval when a traumatic experience may have caused the soul to not return fully, a way of protecting itself and needs to be brought back.