Regarding desire mentioned in the Council of Trent, the book, Canons and Decrees of the Council of Trent , is the actual Council of Trent - not a catechism based on it - but rather the actual written decrees, the actual record.
- Original text with English translation by Rev. H. J. Schroeder, O.P., from Refuge of Sinners Publishing
It explains that "baptism of desire" takes effect at the pouring of the water - at the sacrament itself.
Priest: "N., do you wish to be baptized?"
N.: "I do"
(or the Godparents for an infant)
- the catechumen has to indicate the will or wish to be baptized, then the sacrament's form and matter follow.