Anima Astrologiae or A Guide for Astrologers by William Lilly 1676

The 54th is, To consider whether a superior planet be removed 12 degrees from the Sun, going to his morning rising, or an Inferior is so much, and direct, going to his evening rising, for then he is said to be fortified; but when he is got 15 degrees, so that he appears, he is more fortified in everything: like one coming out of a battle rejoicing having destroyed and outed all his enemies. But when the Sun follows the three Superiors, and there shall be between them and him less than 15 degrees, their weakness is said to be increased, until there shall be only 7 degrees between them and afterwards, until they shall be in the heart of the Sun, they are said to be in extreme debility; but the debility of the Inferiors is contrary to them, for it is said to be increased when they follow the Sun, and that there is between them and the Sun from 15 degrees to 7 degrees, and from 7 degrees till they are in the heart of the Sun, they are said to be in their greatest debility.

55.Whether the Significator be Peregrine