For sarai21
sarai21, your question cannot be answered with specific details. Since very few of us remember any of our past lives, everything we, or anyone says, is likely to be highly speculative. I'll share what I believe is worth investigating based on my own experiences.
NORTH NODE
This is supposed to be a significator (by angle, house, sign or conjunction) of what you need to work on in this life time. This implies that 1) you didn't do well in this area previously and that you need to add experience from this area in order to balance-out your spiritual growth, 2) you are progressing in your development and this is your next "assignment."
SOUTH NODE
This is supposed to indicate capabilities that you have already developed and which you may fall back upon as a strength or resource if you need them.
MOST RECENT PAST LIFE
When we learn about cycles and phases, the very basic building blocks of astrology, we learn that new cycles begin with conjunctions -- and that the "preparation" phase is when a cycle is passing thru its 12th house. On this basis, it would seem that your previous life experience may have had an ascendant sign prior to your present one. If so, the next logical question is, "what planets were where?" This is, in essence, the same as asking about "where and when."
This is were it gets beyond "rules" and into common sense and speculation -- if that pair of words can be combined in any way. Saturn is known as father time. Pluto is the planet of "transformation." What relationship are those two planets in now? Cycle-wise, what was their last major aspect point in terms of house and sign?
In your head, place your SUN at that point -- the last aspect point of Saturn and Pluto prior to your birth. The Sun is an "integrative" factor. What does this "tentative" Sun placement feel like if it was part of your present chart? Could you live with it, can you imagine living with it?
Relative to this tentative Sun placement, place Pluto in the same relative position to your present Sun to this tentative/speculative Sun placement. By its sign/degree placement, you should be able to look up in an ephemeris or by computer program to see when Pluto was at that point (this will give you a year or perhaps two different years) and the Sun position will give you a day within that year. Now do a rough chart with your current 12th house sign as the new Ascendant sign and then meditate upon it.
Its all a logical game. You will probably, over several weeks, be able to identify with some portions of the speculative chart. Thoughts and alternative ideas may develop for you which might lead you to alternative times/places and charts. At least you are on your way. Good luck and stay in touch. Dave