I've been checking out my D60 chart and omg there are so many insights to be had! The D60 is the final stroke of your karma, the closest chart to your soul energy. It's the karma that pulls the strings in your life that you bring from past lives.
So from how I'm kind of starting to piece it together... the D60 is like the director of the movie, and the D1 is the movie itself. The D1 is how these karmas actually materialize into the world.
For example Marilyn Monroe has exalted Venus in her D60. In her D1 rashi chart it's in Aries. But the reason that she so easily attracted partners and had all consuming romances, was possibly from this Venus in Pisces in her D60. Perhaps she was so caught up in the dreamy, spiritual side of romance and love, that the way it actually manifested was through attracting difficult Aries-like partnerships. The ideal love in her heart didn't map out neatly into the real world. She also could have had her otherworldly beauty from this D60 Venus in Pisces.
In my own D60, the deity that rules my ascendant means "divine protection" and is a form of Lord Indra. In my D1, my ascendant is ruled by Indra, the nakshatra Vishaka! So this Indra energy could be something passed onto me through lifetimes.
Another interesting thing from my D60 is that I have Rahu Moon conjunction, which can denote someone who is psychic, but has poor psychic boundaries. It's interesting that in my D1, I have a very prominent 8th house. So perhaps in past lives, I had a lot of psychic intuition, but in this lifetime I am learning to manage it better...














