It is a wonderful witness of the deep and full blessing into which we are brought, that through the Holy Ghost (i.e., God dwelling in us and we in Him) we are brought to know Him and the blessedness into which no creature can enter. God dwells in the light which no one can approach unto—yet we know Him as dwelling there. We know what light is, and we understand that in that essential being and glory He must be unapproachable. Yet it is because we know what it is, He dwelling in us in love, that we know it must be unapproachable—yet know Him there.
So even Christ's present place—no one can ever be there but He. Yet it is our special blessing to know what that place is, and what He is as there, and how He is there, and went there; see John 17 and 13, as well as Heb. 1 and other passages alluding to Psalm 110.