Is that really Peter's chair they're bowing down to?
You know there is a reason I'm asking.......remember we have something called the internet.
I don't mean to be flip, but Jesus is depicted there as a child. Mary, as His Mother, was larger than Him.
The tabernacle, which contains the consecrated Host, the Body and Blood of Christ, is usually placed behind the altar. In the posted photograph, the Host is displayed in the monstrance, or the round gold vessel on the altar.
Is that really Peter's chair they're bowing down to?
No, they are prostrating themselves before the Body and Blood of Christ, under the appearance of unleavened bread, which is referred to in the Bible by St. Paul.
"For he that eateth and drinketh unworthily, eateth and drinketh damnation to himself, not discerning the Lord's body. For this cause many are weak and sickly among you, and many sleep [die]."
--St. Paul
"They abstain from the Eucharist and from prayer, because they confess not the Eucharist to be the flesh of our Saviour Jesus Christ, which suffered for our sins, and which the Father, of His goodness, raised up again. Those, therefore, who speak against this gift of God, incur death in the midst of their disputes. "
--St. Ignatius (110 A.D.)