Rosmini's Theosophy is the crowning work of his philosophical study and reflection. Written for the most part towards the end of his life and running to five volumes, it was never completed. His intent is to investigate being in all its extension and forms. Vol. 2 Investigates trine being - being, both infinite and finite, manifests itself in three forms: real, ideal and moral. The Christian doctrine of the Trinity, as three in one, finds a place in such a study.