Here we are again thinking the Immaculate Conception is something to do with the Holy Spirit overshadowing the BVM - which is the Incarnation. Ms Marcotte's vile description of the Holy Spirit being the catalyst for Mary's pregnancy is against all Christians and is intended to be insulting. But, Ms Marcotte seems to be continually ranting against Catholics in particular and using vile four-letter words in every sentence.
The Immaculate Conception is the dogma which states that the BVM was free from all sin, even original sin, by the grace of God from the time of her conception in the womb of her mother. The reason being that God prepared her as a vessel for the Holy Spirit, thus to be the Mother of Jesus Christ. For that reason Catholics also refer to her as the new Ark of the Covenant.
Is there a chapter and verse for this dogma?