As ruler of Aries and the 5th House, Pluto is raw personal power, the unconscious Fire planet. We all need Pluto to keep us going forward, even when we are tired and do not want to go any further. Make a friend of Pluto, and you will find hidden depths of energy to help you to win the game. Work and Health, the traditional attributes of the 6th are closely involved with the practicalities of daily living, and it is not long ago that the ability to work and the ability to stay healthy were strongly interlinked. Despite state aid for the poor and the sick, this is still largely the case.
Life can be tough and unfair, and work can be stressful for health.
Perceptiveness and rapid responses are an advantage here. The Seventh House - traditionally marriage and close partnerships. Planet Zed, a hypothetical planet beyond Pluto, is a more likely contender for ruler of Gemini and the 7th. Thinking is abstract enough in itself, and unconscious or Id-type thinking is difficult to describe. I find the best way to understand it is to regard it as being similar to De Bono's Lateral Thinking.