The Eighth Matter
With the figurative meanings being grafted and fecundated and the significations being transposed and transformed, the true meaning absorbs either the aim or one of the suspended meanings and draws it to itself. For when either of them enters into it, it is changed into the truth and fundament. The meaning, which is the word’s true owner, assumes a vital form, and assists it, and seeks help from the secondary meanings. It is because of this that a single word may have numerous meanings. The transpositions and fecundations arise from this. Anyone who neglects this point, loses out on a significant point of eloquence.
Indication
If something is mounted on something, it takes the preposition on (‘alā), and if it puts something inside something like an envelope, it requires the preposition in (fī), like in it travels in the sea (tajrī fi’l‑baḥr). And if something is an instrument, it requires the instrumental “by” or with (al‑bā’). And since it is a place and mounted, it requires the prepositions in (fī) and on(‘alā): I climbed up to the roof by the ladder. And since it is the aim, it requires to (ilā) and (ḥattā). And since it is a cause and adverb, it requires the to (lām) and in (fī), like in And the sun runs [its course] to a resting‑place. This is the method; you can make further examples, if you can.
Note Whichever of these concentric meanings touches more on your aim and is closer to your purpose, advance it and impart it and make the others corroborate it. Your manner of expression will otherwise lack impressiveness and be devoid of rhetorical embellishment.