If this were my dream, I would ask myself what my associations are to the number three. The first thing that come to my mind is the Holy Trinity - The Father, The Son and The Holy Ghost. A triangle comes to mind and also a trio. Is there some project I am working on that I should be doing with a trio? Me, myself and I come to mind - I should rely on and trust myself.
Next I would look at what was happening in my life when the dreams first started and also what is happening on the day before I have the dream.