Positive preparation or disposition for grace (capacitas sive praeparatio positiva) is practically on a level with natural prayer.
Philo of Byblus, quoted by Eusebius, Praeparatio Evangelii, i.
I can imagine an historian of this temper believing that the period we are about to discuss was a necessary softening of human pride, a Praeparatio Evangelica.
Eusebius studied the subject, somewhat superficially, in his Praeparatio Evangelica, in which he argued that much old pagan belief was to be explained as an imperfect preparation for the full light of the Gospel.
Of Eusebius' apologetic works we still have the Contra Hieroclem, Praeparatio evangelica, Demonstratio evangelica, and Theophania.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "praeparatio" in a variety of sentences. We hope that you will now be able to make sentences using this word.