This is done by whole house sign. Ascendant being the First Sign, and its ruling Planet being considered the First Lord. Second Sign’s Planet being the Second Lord and etc… wherever the Planet is located influences the house. For imagery, the planet is the car and the lords position is the fuel. Example for an Aries ascendant, the First Lord is Mars, then going around to find where Mars is, say the 11th House, so the 1st Lord in 11th House as Mars.

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