God, the Holy Spirit, descends upon Mary to produce the infant God, Jesus in her womb — so, does God the Holy Spirit enter Mary? Or does He plant His seed within her? Is this one and the same? Does it matter? Luke, the physician, records the event. The angel tells Mary, “thou shalt conceive in thy womb, and bring forth a son, and shalt call His Name JESUS. He shall be great, and shall be called the Son of the Highest; and the Lord God shall give unto Him the throne of His father, David. The Holy Spirit shall come upon thee, and the power of the Highest shall overshadow thee; therefore also that holy thing which shall be born of thee shall be called the Son of God.” (Luke 1:31-32,35)
Elizabeth’s child, John — while still in her womb — leaps with joy when Mary comes close, literally recognizing Jesus, the Son of God who resides in Mary.
Much later, God the Holy Spirit descends from the clouds on the day Jesus is baptized by John in the river Jordan. God the Father speaks, “This is My beloved Son, in whom I Am well pleased.” (Matthew 3:17) “And Jesus, being full of the Holy Spirit, returns from the Jordan, and is led by the Spirit into the wilderness.” (Luke 4:1) Here Jesus is tested by the devil for forty days and nights.
No time exists in Jesus’ earthly life when He is separate from God the Holy Spirit. Being full of God the Holy Spirit, He is led by God the Holy Spirit.