You will be given a definition of a task first, then some input of the task.
In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.

Supposedly , the shaman perceives and interacts with a spirit world , and channels these energies into this world .
Output:
Shamanism is a practice that involves a practitioner reaching altered states of consciousness in order to perceive and interact with what they believe to be a spirit world and channel these transcendental energies into this world .