Anima Astrologiae or A Guide for Astrologers by William Lilly 1676

The 11th Consideration, Is to take notice of the Malevolent Planets, and what they signify; for Saturn and Mars are naturally bad, Saturn for excess of cold, and Mars for excess of heat; not that either of them is really hot or cold, but virtually so; and these are their effects. And so they signifie evil and damage and hindrance, unless they receive the Significator or the Moon by House, Exaltation, or two of their smaller dignities; or shall themselves be Significators; for then they will bridle their malice, and not weaken or hinder him whom they receive, with what aspect soever they behold him; but if they do not receive, their malice is increased; and so much the more if they be in opposition or Square; for in Sextile or Trine the mischief is less. Yet ‘Zael’ seems to say that Infortunes lay aside or restrain their malice, where they are in Trine or Sextile; but his meaning was only that they were not then so violent, and intended not that their malice was wholly abated.

12.What the Fortunes signify