Summary: You break free from your old ways of thinking. You have more self-control over unconscious motives.
This interpretation is for when Transiting Pluto is going through your natal first house.
When Pluto crosses the Ascendant, you should make a fearless effort to liberate yourself from all traditional thought patterns and become an example for others. Relate this to the sign that is on your 1st house at birth, and your Pluto sign at birth. It will help a lot to get in touch with the forces that have shaped and made you who you are. This will help you to have more control over your unconscious motives that in the past came to the surface through compulsions and unconscious and irrational obsessions.
It is like you feel a force within that wants to control everything and everyone, which makes relationships very difficult. What you must learn to control is yourself. Make an effort to see yourself positively, as you have a unique opportunity to discover new and very powerful resources and values. The difficulty here is that you have too much power and can force things and people away from you. There is a huge change in your image and in the way you express yourself.
Richard
any transit can be to the natal ascendant or the sun sign as ascending. Each deals with a different aspect of self and life, though I have not seen this clarified anywhere. Any insights?
Ava
Of course there are aspects to your sun and ascendant but your ascendant is a more precise pinpoint part of the chart telling you exactly what house it’s happening in. Example, Aries sun has been squaring Pluto for the next year, but if you’re an Aries rising Pluto is transit in your 10th House. You have to look at the aspects that are made to your sun. Pluto squaring the sun means a battle in clash of the egos. Look at your sun aspects in your chart to know more.