Mary is the mother of God. It is through the miracle of the Incarnation that we see the face of God.
+1
Yes and no.
Those then saw a human box bearing the Creator of all that is.
Some have seen visions and visitations of Him since--e.g. Paul on the Damasus road and others of our era.
That's quite different than seeing the face OF FATHER GOD ALMIGHTY. By all accounts, HE IS QUITE STINGY with allowing such phenomena--both in Scripture and by all accounts since the Canon was formed.
So, in a very technical respect, it is simply NOT TRUE that Mary had anything to do with us seeing THE FACE OF ALMIGHTY GOD. And ascribing merit or benefit to or from her related to such a falacious untruth is further . . . nonsense, imho.
And since knowing Jesus IS eternal life, John 17:3, then we only have eternal life through Mary. Right?