Heard a sermon today from a priest performing his clerical duties in the "Southeastern Conference", so to say.
He explained the difference between Actual Grace and Sanctifying Grace.
Applying the priest's definitions for these graces, "Desire" for Baptism would be the Actual Grace.
But the real Sacrament of Water Baptism would be the Sanctifying Grace.
Actual grace is close... but no cigar... as they say in the circus side shows.