“What’s that on the altar?”, “What is Father wearing?”

Here is a detailed list of the sanctuary furnishings, sacred objects used on the altar and the attire of the priest.
@Tesa pic related
Roman Catholic priests face the tabernacle towards God to offer the Holy Sacrifice of the Mass. Today priests turn their backs from God To offer Mass.
John Paul II: "Certainly the liturgical reform inaugurated by the Council has greatly contributed to a more conscious, active and fruitful participation in the Holy Sacrifice of the Altar on the part of the faithful."…7_ecclesia_eucharistia_en.html