What is Catholicism?

IMMERSION ... "baptisto" means to "whelm" or to plunge completely under the liquid. There is a Greek word for "dip" and a Greek word for "sprinkle" that are used in scripture, but people are told to repent and be "baptiso".

 

I am a little out of my wheelhouse, but I heard (from a Jesuit Speaker) that the mass allows the physical world to touch the divine world. Thus the elements become reality and those worshiping and partaking enter into the eternal "now" of God. Thus Christ is dying at that moment for our sin, and rising in glory in that moment for our hope and seated with the father in that moment for our comfort and security. As we obediently eat His flesh and drink His blood, we literally become one with him ... the literal body of Christ (here on Earth).

Hopefully a Catholic will come along and correct whatever I got wrong. That is the danger of a sample size of "one".

 

For those following along that might want a glossary:

• Modalism: is probably the most common theological error concerning the nature of God. It is a denial of the Trinity. Modalism states that God is a single person who, throughout biblical history, has revealed Himself in three modes or forms. Thus, God is a single person who first manifested himself in the mode of the Father in Old Testament times. At the incarnation, the mode was the Son; and after Jesus’ ascension, the mode is the Holy Spirit. These modes are consecutive and never simultaneous. In other words, this view states that the Father, the Son, and the Holy Spirit never all exist at the same time–only one after another. Modalism denies the distinctiveness of the three persons in the Trinity even though it retains the divinity of Christ. Present-day groups that hold to forms of this error are the United Pentecostal and United Apostolic Churches. They deny the Trinity, teach that the name of God is Jesus, and require baptism for salvation.
• Oneness Pentecostalism: is a movement of multiple churches (United apostolic, United Pentecostal, etc.) that denies the Trinity and says that God is one person who took different modes at different times. Typically, it is associated with the hyper-charismatic experientialism, works righteousness, and baptism is a requirement for salvation.

(credit: definitions taken from CARM and Matt Slick)

 

Clearly that is what YOU believe, but just for the record, what do Catholics believe?
Do Catholics even CLAIM that "saving grace" is imparted by the "Sacrifice of Mass"?