Gregory of Nyssa was a Christian bishop and saint. He was a younger brother of Basil the Great and a good friend of Gregory Nazianzus. His significance has long been recognized in the Eastern Orthodox, Oriental Orthodox, and Roman Catholic branches of Christianity.
Gregory along with his brother Basil of Caesarea and Gregory of Nazianzus are known as the Cappadocian Fathers. They attempted to establish Christian philosophy as superior to Greek philosophy.
Of course isn't the writing that is the problem. This is a spiritual classic. But you are really on your own with this one. There is no contents page, no index and no forward. No helping hand at all to prime you for this dense text which constantly had me at the threshold of my understanding. I came away from this edition how complete this volume is and what else I might want to read. And the formatting doesn't not help either.