The subsistences dwell and are established firmly
in one another. For they are inseparable and cannot part from one
another, but keep to their separate courses within one another, without
coalescing or mingling, but cleaving to each other. For the Son
is in the Father and the Spirit: and the Spirit in the Father and
the Son: and the Father in the Son and the Spirit, but there is
no coalescence or commingling or confusion Greg. Naz.,
Orat. 1, 13 and 40.. And there is one and the
same motion: for there is one impulse and one motion of the three
subsistences, which is not to be observed in any created nature.