The process of justification starts with faith, fear, hope, etc.
Read the entire Treatise on justification in Trent, not just your pet sentence.
Trent says that these are pre-dispositions for justification, right up through the desire, and that justification itself FOLLOWS AFTER these (including the desire) in the reception of the Sacrament. That's another strong argument against BoD in Trent.
Trent lists the dispositions for justification ... right up through the desire.
Trent then says that justification FOLLOWS AFTER these when the Sacrament of Baptism is received.