Anima Astrologiae or A Guide for Astrologers by William Lilly 1676

The 70th Consideration is, To mind another secret; not well searched into by Astrologers, but often times doing them much prejudice; that is, see in all Questions, etc., whether the Lord of the New or Full Moon, preventional last before, be in any of the Angles of the thing enquired after; if it be, it denotes that the business will be accomplished, unless it be the Querent’s own fault (or that God overrule against it),though perhaps by other significations it seemed not likely. But if it shall not happen so but only the same is in the Ascendant; and the other significators that is, The Lord of the Ascendant of the thing enquired of and the Moon, or any of them assist, the thing well be done with ease. If it be in Cadent Houses, it will scarce ever be, though other significators seem never so favourable; and if two at least of them be not so, take it for certain it will never be done.

71.Whereabout the Signifcator happens in the Figure