I like to summarize the first two tenets of Unity as God is and I am. Meaning: there is one ground of being from which all expressed being takes form and into which all expressed being ultimately retreats.
There are not two grounds of being. There are not two cosmic forces playing tug-of-war for your soul. Contrary to what Flip Wilson said, the devil doesn’t really make you do anything. There is only the profound honor of being an incarnate point of awareness within that one ground of being – an incarnate point of awareness soaring through space on a blue-green marble, privileged with the temporary delights of multiplicity and the limitless potentials of freedom.