I was wondering if a horary chart could be used to determine questions regarding the interesting possibility of 'other' lives?
Perhaps in such questions the ascendant is a reflection of the current self, and the 7th house cusp a reflection of the 'other' self. The relationship between the two respective significators representing karmic resonances in operation between the two existences.
Perhaps the 4th house cusp ruler is the significator of fate, the unalterable consequences set in motion through our actions. Thus it is that which we have inherited from that other self, and as such represents the conditions with which we must comply in regard to the question, because we cannot change these conditions, as a consequence of resonance of karma across lives.
The 10th then, would be the cusp of destiny, as this significator represents opportunity, and the highest orientation of free will. Thus it is the most we can make of the gifts inherited from that other self in regard to the question, and as such is the conditions which we may use to our advantage.
What of the Moon? I suppose the Moon is some aspect of the soul, as it flits through one zodiacal incarnation to another, ever changing face. The Moon would encompass the circle of birth, growth, life, sickness, death and renewal in its cyclic wanderings through the zodiac. It would represent both the axis of self (1st) and other (7th) as well as the axis of fate (4th) and destiny (10th), and therefore be of ultimate importance, its condition and aspects revealing perhaps an important insight.