Such passages spring from the deepest roots of man, they refer to the Self.
Not the human being, not the ego, is God but the Self is God in man, and it is superior to human consciousness, just as the whole is superior to a part.
We hear next to nothing of the Self in Christian philosophy because it has been left in the hidden truths.
But we should have heard of it if the Church had been able, while it was still strong and powerful, to develop the religion of the Holy Ghost.
That is, if the Church had gone beyond the historical figure of Christ, as he himself intended when he promised that the Holy Ghost should descend on each, as it had descended upon him at his baptism.
He said he was the Son of God, and called others the children of God, by which he recognised them as brothers and sisters.
But this thought was too difficult, it is still too difficult for the Church.
It is, however, impossible for us to recognise our relationship to eastern ideas, or to assimilate these, unless we realise our own Christian background and that such ideas were expressed in the original documents of our own faith.
We suffer from a certain “developpement arrete”, our spiritual development stopped short, whereas that of the East is hypertrophic.
This is because they had and have no institution in the East which can be compared with the Roman Catholic Church. Buddhism, in this sense, is far from being a Church. ~Carl Jung, ETH Lectures, 1 December 1939, Page 196-197