Shamans believe that they can regurgitate the spirit at will and pass it on to a disciple. The disciple either receives the  by swallowing the regurgitated substance from the hands of the shaman or by smoking it through a pipe.
Spiritual practitioners believe that they can ingest the vital force at their whim and transmit it to an initiate. The initiate either acquires the  by consuming the reconstituted substance from the hands of the practitioner or by vaporizing it via a smoking apparatus.