If one looks to the final cause, it can be reduced to four quasi-species.
The first is when an advantage is expected in external goods or goods of fortune, as in animals, crops, vineyards, a good condition of the air, and so forth.
The second is when some bodily good is expected, such as health or deliverance from prison, enemies, iron, fire, water, and the like, because in this way a person thinks he will be unharmed.
The third is when a natural good of the soul is expected, such as an art or some science.
The fourth is when supernatural goods are expected, such as remission of sins through certain fixed forms of prayers, or little verses from the Psalms or from other sacred Scripture, and other things of this kind not ordained for this purpose by God or by the Church.