"That they all may be one; as thou, Father, art in me, and I in thee, that they also may be one in us: that the world may believe that thou has sent me. And the glory which thou gavest me I have given them; that they may be one, even as we are one: I in them, and thou in me, that they may be made perfect in one; and that the world may know that thou hast sent me, and hast loved them, as thou hast loved me."
Jesus
John 17: 21 -23
We are one in God's pure consciousness.
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The soul that is attached to anything however much good there may be in it, will not arrive at the liberty of divine union. For whether it be a strong wire rope or a slender and delicate thread that holds the bird, it matters not, if it really holds it fast; for, until the cord be broken the bird cannot fly.”
St. John of the Cross
Test your reason I will test mine. The mind attaches and binds, the soul is free. The dominant personality is a mental attachment.
"Surely you know that you are God's temple, where the Spirit of God dwells. Anyone who destroys God's temple will himself be destroyed by God, because the temple of God is holy; and you are that temple."
St. Paul
The Spirit itself beareth witness with our spirit, that we are the children of God: And if children, then heirs; heirs of God, and join theirs with Christ; if so be that we suffer with him, that we may also be glorified together.
For I reckon that the sufferings of this present time are not worthy to be compared with the glory which shall be revealed in us. St. Paul
There is nothing wrong with going inside to witness God.
his secret union takes place in the deepest centre of the soul, which must be where God Himself dwells, and I do not think there is any need of a door by which to enter it. I say there is no need of a door because all that has so far been described seems to have come through the medium of the senses and faculties… But what passes in the union of the Spiritual Marriage is very different. The Lord appears in the centre of the soul, not through an imaginary, but through an
intellectual vision (although this is a subtler one that that already mentioned), just as He appeared to the Apostles, without entering through the door, when He said to them: "Pax vobis" {cf. John 20:19,21}. This instantaneous communication of God to the soul is so great a secret and so sublime a favour, and such delight is felt by the soul, that I do not know with what to compare it, beyond saying that the Lord is pleased to manifest to the soul at that moment the glory that is in Heaven, in a sublimer manner than is possible through
any vision or spiritual consolation. It is impossible to say more than that, as far as one can understand, the soul (I mean the spirit of this soul) is made one with God, Who, being likewise a Spirit, has been pleased to reveal the love that He has for us by showing to certain persons the extent of that love, so that we may praise His greatness. For He has been pleased to unite Himself with His creature in such a way that they have become like two who cannot be separated from one another: even so He will not separate Himself from her. St. Teresa Avila
The spiritual experience is important to most Christian Mystics.
The love of Christ presents man’s spirit with an intuitive understanding that the mysteries of faith can be brought into existence and appreciated. These mysteries are given to us to be mastered, and they seek understanding, not only in reflection, but also in prayer and meditation. God is everything, which we try to represent for the intellect and is infinitely more so we pass from philosophical understanding to faith, and then we pass from faith to spiritual understanding. Spiritual understanding is an intensification of faith transforming it into a vision, an experience and a
mystical union.