In general, all functioning things are aggregates because they are an aggregation of their parts. In particular, a person of the desire realm or form realm has five aggregates: the aggregates of form, feeling, discrimination, compositional factors, and consciousness. A being of the formless realm lacks the aggregate of form but has the other four. A person's form aggregate is his or her body. The remaining four aggregates are aspects of his mind. See also Contaminated aggregate. See Heart of Wisdom.