Tenqi is Heavenly Energy. We are in Heaven now, on a spiritual level. Study A Course In Miracles as long as is useful.
Tenqi is a study of spirituality and theology by Michael Ten. It is a personal endeavor. Anyway wanting to join in pursuing Tenqi is welcome to. Come as you like and leave at any time. The one requirement to pursue Tenqi is that you authentically feel called in your spiritual heart to explore these ideas.
Tenqi is specifically the spiritual aspects of Tenqido.