This typology proposes six types of prayer: Hidden categories: After the ecumenical approach of Second Vatican Council of Roman Catholic Church , Heiler as an ecumenical theologian has been of less interest in academical theology.

No limitations are placed on method, location, or liturgical ranking. He also had a long literary feud with Sadhu Sundar Singh , but nevertheless defended him in time.

Eerdmans Publishing Co, ; Ritualistic prayer derives from such pragmatism in which superstition leads to formulas and litany.