I answered that in a previous post. Father-Mother (Spirit-Matter) create embryonic mind which evolves in quality equal to that of the Father. Gradually, We come to know the Purpose of the planet. Bear in mind we are that part of the planet that got up and walked. It doesn't matter if we believe god created us for dirt, or that the Creator Aspect of the three-fold Trinity created us via the evolutionary process, the fact is, we are that part of the planet that got up and walked. We are the planet. but I'm about to get off on another topic.
Father and Purpose are synonymous. The acorn for example, at some point in its growth, becomes aware of the fact that it is to become an OAK and can say, I and the Father, in this case an Oak, are one. Then comes that day when the acorn has become the Oak. It is called, as I posted in my previous reply, At-one-ment. See John 14:20.
There is no Vicarious Atonement. Atonement is a corruption of the original At-one-ment. Google the word seed and you'll see it creates a replica of itself which matures into at-one-ment with its creator. I did an article for an Aquarian publication based upon this very subject.
Thomas is the symbol for doubt. At my present point in development, I do not know why this planet was created...its Purpose. Until I do, I can only speculate as to what this purpose is. I am constantly in touch with the Thomas, the doubt, in me because, while I'm aware there is a purpose, I (as yet) cannotnbe sure what this purpose is.
But as I grow, becoming increasingly this purpose, I will not "visit" Thomas often at all. Finally my Thomas will disappear because I and My Father have become one in Purpose. I know my father's will (purpose) and I do it. I have undergone my New Testament period during which all the fanciful notions I had, none of which had anything at all to do with Purpose...about what I thought I wanted to be have died daily (l Corinthians 15:21)
Ageless Wisdom teaching tell us that once the above has happened and our lower desires have been transfigured and our channel has been cleared of all interference, all the static, all the foolishness, the Purpose of our planet becomes evident and our encounters with doubt (Thomas) are fewer and fewer. Then comes that momentous time in my mind's evolution where I make my crucifixion initiation. My human nature, which included the Thomas in me, the cross upon which my Christ mind has been crucified, has died its final death.
At this point we are completely unlike the magnet of human desire and are enough like the magnet of Purpose that we are drawn ever closer into at-one-ment with it.