Complex sentence: Man's "nous", word and spirit are not hypostases or individual existences or realities, but activities or energies of the soul--whereas in the case with God or the Persons of the Holy Trinity, each are indeed hypostases.
Split into simpler sentences: Man's "nous", word and spirit are not hypostases or individual existences or realities, but activities or energies of the soul. Were as in the case with God or the Persons of the Holy Trinity each are indeed hypostases.