What does Gorman mean by his uses of "participation" as a way of speaking of our relationship with God, God`s People, and the World?

Discussion Question: Exploring Participation

Purpose: The purpose of this question is to nudge the student into a deeper appreciation of the theological concept of "participation" as used in Paul`s writings.

Initial Post: What does Gorman mean by his uses of "participation" as a way of speaking of our relationship with God, God`s People, and the World? Please be specific and cite Gorman. What aspect of "participation" would you like to learn more about? Why?