I have a simian crease on my dominant hand. For those who don’t know, that is one line across the palm of the hand instead of two. It’s a blending of the head and the heart line. Every now and then I zone out on it and certain questions start to percolate.
Does my mind blend well with my heart? Do my feelings always match my words? It’s a lovely idea that the head and the heart should be so entwined. I would guess that life would feel like a waltz that you knew all of the steps to. In astrology the Sun rules the heart and Mercury rules the mind. It’s interesting that Mercury is never 28 degrees farther away from the Sun. Therefore many people have their Mercuries in the same sign as their Sun. Is it easier for these people to find that happy balance between mind and heart?
My Sun is in Leo but my Mercury is in Virgo and I definitely feel the little tug of war between these energies within me. I have an early memory that echoes through my soul where I was so eager to show off (Leo) that I knew the word that the teacher was writing on the board. “I know what that says! I know what that says!” and the teacher said “Tess, don’t—” because she wanted the other kids to sound it out, but I didn’t heed her warning and blurted out “JILL!”. The teacher let out a sigh of frustration and that’s when my Mercury in Virgo took over. In my head I was mortified at my know-it-all behavior. Where’s my humility?? My Virgo mind needed that I maintain humility but my Leo heart wanted to go for the gold! This is a theme that has repeated itself many times over in my life.
Mercury also rules the lungs. This ties mind into speech as well as connectivity with all living things. The air we breath today is the same air that was breathed by Nostradamus and Shakespeare. In the human body the lungs and the heart are VERY intimately connected just like the Sun and Mercury. As I learned in my Medical Assistant training class, the blood is blue when it enters the heart’s first chamber because it has no oxygen. After it fills up the first two chambers of the heart it goes directly into the lungs where it becomes oxygenated and RED (!) then back into the heart’s last two chambers where it is sent through the aorta to deliver this oxygen to the rest of the body. Pretty amazing…
Is your natal Mercury in the same sign as your natal Sun or in a different one? If understanding these relationships better can help facilitate a lighter heart, I think that is reflection well spent. 
Toroidal Zodiac 