I was brought up Roman Catholic, now "Lutheran" in . . . name.

It means:

"In the name of the Father, the Son, and the Holy ghost." meant to be said to complement a priest making the sign of the cross, usually. Each touch of the hand represents Christs wound locations on the cross. Forehead(thorns), chest(heart, spear), Left and Right sides for hands pierced by nails. anyway, that is what I recall. . . ?!@