Elder Aimilianos of Simonopetra: How does the Holy Trinity create a person?
‘At one exceptional and unique moment in history, the heavenly Father wished to create the material world. Once this had been done, He then went on to make the human body, in collaboration with the other two Persons of the Holy Trinity, and breathed the ‘breath of life’ into it. So God’s creation became ‘a living being’ . God then ceased merely to hover above the waters  and entered into the created and material elements and living things. He dwelt in a unique, supreme being who became the king and the reason for the creation. Now the reason for the creation is God Himself. From that moment, the conjunction, the path towards identification and union with God became inevitable, and it’s now impossible to conceive of the human person, the image of the invisible God, without the Holy Spirit.
So the Holy Spirit, as one of the Persons of the Holy Trinity, collaborates in the birth of every person. Together with the Father and the Son, He gives to the maternal womb the material which is taken from the father and mother, and the embryo thus conceived is flesh, dust. We people give birth to dust: we’re dust and return to dust . To this dust, the parents give all the capacities and characteristics of their personalities, they give themselves, the image of their flesh.