JOHN OF RUYSBROECK
The final state of the Christian mystic, then, is not annihilation in the Absolute. It is a condition wherein we dwell wholly in God, one life and truth with Him; yet still “feel God and ourselves,” as the lover feels his beloved, in a perfect union which depends for its joy on an invincible otherness. The soul, transfused and transfigured by the Divine Love as molten iron is by the fire, becomes, it is true, "one simple blessedness with God"35 yet ever retains its individuality: one with God beyond itself, yet other than God within itself.36
The “deified man” is fully human still, but spiritualised through and through; not by the destruction of his personality, but by the taking up of his manhood into God.
There he finds, not a static beatitude, but a Height, a Depth, a Breadth of which he is made part, yet to which he can never attain: for the creature, even at its highest, remains finite, and is conscious that Infinity perpetually eludes its grasp and leads it on. So heaven itself is discovered to be no mere passive fulfillment, but rather a forward-moving life:37 an ever new loving and tasting, new exploring and enjoying of the Infinite Fulness of God, that inexhaustible Object of our knowledge and delight. It is the eternal voyage of the adventurous soul on the vast and stormy sea of the Divine.
“The path is the goal”

Is this part of the citation?
Yes, this is a fascinating exposition. It differentiates between the vast majority of Christian mystics and Eastern mystics. To put it in short terms, from what I’ve read, is that for the most part, Christian mystics stop short of the last step of the mystical journey. This is so, or perhaps only appears so, due to the depth of intellectual inculcation, the fear of retribution to plain speech, (eg, the burning of some of the works of St. Teresa of Avila) or even the difficulty of expressing the ultimate mystical experience in words. Perhaps even a combination of those. The result is of these three together may be a great barrier to a totally honest Clarity.
What I’ve gathered, then, from my readings is that the belief in the sole Sonship of Jesus is a barrier to the analytically and intellectual embrace of the actual nature of the final transformation (in fact an inaccurate but oft used word) which mystical work leads to. In fact, a Catholic woman put it succinctly in one of her books: “As long as you believe you are a person, you will have a personal God.” Naturally, that then has a corollary, which may go to ZenFreds ultimate point.