 Soon after death, it was believed that a person's "hun" and "po" could be temporarily reunited through a ritual called the "fu" "recall; return", "zhaohun" "summon the "hun" soul", or "zhaohun fupo" "to summon the "hun"-soul to reunite with the "po"-soul".The earliest known account of this ritual is found in the (3rd century BCE) "Chuci" poems "Zhao Hun" "Summons of the Soul" and "Dazhao" "The Great Summons"(Csíkszentmihályi 2006