It is, perhaps, the Tao of Gemini, the Fate of Twins, the Destiny of Castor and Pollux, or Cain and Abel, Fred and George… that as one rises, the other falls, and within oneself, the rise and fall is constant.
Or perhaps it is yin and yang, thesis/antithesis, Shin and Bet, fire and water, heaven and earth… Duality seems an inextricable part of our universe: Even our bodies bifurcate into left and right, two hands, two feet, two ears, two eyes, two lungs holding our breath (which is, in Kabbalah, the force that passes between fire and water, the Aleph between Shin and Bet, and yet, inside us, even the lungs are broken in two).
For me, at least, the rise and fall seems a symptom of chronic depression: Even while treated and generally manageable, sometimes the cup overflows and it is not abundance but tears that pour down the edges and flood where it stands. Alas. Such is fate.
But what to do with fate? Is the last duality only action and inaction?