Interesting. First I’ve heard of it. I’ve noticed when saints achieve a certain level of mystical development their terminology gets difficult to understand or even a little out there.
I’ll have to think about this. Maybe St. MK is referring to the nature of God’s uncreated purity?
"Additionally, he calls the Holy Spirit the Uncreated, Eternal Immaculate Conception, who is "conceived" from the love that flows eternally between the Father and the Son; a love so perfect that it is personified. Kolbe explains:
Everything that exists, outside of God himself, since it is from God and depends upon him in every way, bears within itself some semblance to its Creator . . . because every created thing is an effect of the Primal Cause.. . ."It is true that the words we use to speak of created realities express the divine perfections only in a halting, limited and analogical manner. They are only a more or less distant echo — as are created realities that they signify — of the properties of God himself.
Would not "conception" be an exception to this rule? No, there is never any exception . . .
And who is the Holy Spirit? The flowering of the love of the Father and the Son. If the fruit of created love is a created conception, then the fruit of divine Love, that prototype of all created love, is necessarily a divine "conception." The Holy Spirit is, therefore, the "uncreated, eternal conception," the prototype of all the conceptions that multiply life throughout the whole universe.
There's rather a long piece at the site!