And the angel answered and said to her, “The Holy Spirit will come upon you, and the power of the Highest will overshadow you; therefore, also, that Holy One who is to be born will be called the Son of God. Luke 1:35
A search in the New King James version of the Bible shows that 'overshadow' is found exactly one time in the word of God. The honor of this overshadowing is bestowed upon Mary, but it is the power of the Highest that does the overshadowing. What a unique event this was!
Of course this does tend to bring up a few questions. Did the Lord use one of Mary's eggs? How far along was baby Jesus created in Mary's womb? You may think of others, but what we need to know is told to us through the holy scriptures. God's Son came down to Earth in a unique way. Unique, but well-publicized - there was no secret here. Isaiah was given the advance notice about 700 years earlier of the virgin birth, Micah was given the birth location, and many other prophets were given additional news about this very special birth. Then, at the time of the event, kings or wise men from far away were notified, shepherds in the field were told, and of course the happy parents knew that this special birth was from God. So, when the power of the Highest overshadows you, be ready for a unique event!
And indeed, each of us does enjoy a unique event when we come to believe in Jesus the Christ. For it is the power of the Highest that grants a rebirth in the Spirit to those who believe in Him. As Nicodemus found out, we will not come out of the womb again, that overshadowing is unique to our Lord Jesus, but we do enjoy the fruits of the Spirit from this rebirth.
From the rebirth in Christ made possible by the unique birth of Christ, Merry Christmas to you!Bucky