What happens in Confirmation?
The soul of a baptised Christian is imprinted with a permanent seal that can be received only once and marks this indivual forever as a Christian. [CCC 1302-1305]
To be confirmed means to make a “covenant” with God. The person being confirmed essentially says, “yes, I believe in you, my God; give me your Holy Spirit, so that I might belong entirely to you, and never be separated from you, and may witness to you throughout my whole life, body and soul, in my words and deeds, on good days and bad.” [YouCat 205]