The South Node shows where we are comfortable. I do not believe in past lives, but people who do, say that this point shows what we have mastered in past lives. i take it as what we are comfortable with, in this life. This shows the races we have already won, you could say, things which come easily and effortlessly, to us. If your SN were in Gemini, social things would come easily to you. You could be popular wherever you found yourself for your outgoing and friendly personality. If your SN were in the house eight, for example. you could talk about things that most people would not such as taboo issues . You would be the one who could bring up deep subjects at a cocktail party, if you wanted. You would be the one to whom a troubled person could come because you would not push them away with a platitude.