1) Jesus is physically present in his body, blood, bones. His soul is there. His divinity is there.
2) St. John Vianney, and others, teach that a Catholic receiving Holy Communion is transformed into the flesh and blood and bone of Jesus--yes, your flesh and blood are transformed into his. Would you see this change under a microscope? No, but it is in fact more real than the merely biological. Your body now and your glorified body in Heaven will be flesh of his flesh.
3) Jesus' flesh, bones, blood is all from Mary, only Mary. If his flesh and bones and blood is yours now...you too are one in flesh with Mary. You can say--and should often say to yourself--you are the very flesh of Mary. That's how close you are you and she are...
4)..and not only that, your soul and Jesus' are united...and Jesus' soul and Mary's soul are utterly united. Which means your soul and Mary's are united as one too.
5) Jesus' Heart and yours become one...Jesus' Heart and Mary's are, yes, one...so then your heart becomes one with Mary's Heart.
All of this happens in Holy Communion. Three hearts become one, three souls become one, and as you are made into Christ you and Mary are one, and all of one flesh--Mary's: Living Jesus' life is not merely imitation--it is an ontological change, a change in your very being--you become Christ, so much so that as you and Jesus are but one Christ, you and Mary are one, you really live Jesus' life--a true child of the Father and of Mary.
Knowing this...what difference does it make in our lives?
And priests and deacons--why do I never hear any of this in homilies?
Does this have to do with consoling Mary? Yes! She is simply overflowing with joy when you are transformed into Christ, and Christ is consoled too because he is able to love and console her through you. You cannot make them happier than by a worthily received (i.e. one is not conscious of mortal sin) Holy Communion! And you cannot be closer to them in this life. Astonishing.
If people knew the truth of this, that fairytales are based on a real, divine fairytale...they would be knocking the doors down to become Catholic.