The sun also rises, and the sun goes down, And hastens to the place where it arose.(Ecclesiastes 1:5) NKJV
We need to know that some concepts are paradigm-dependent. This means that they only apply after accepting the premise of a paradigm. We’ve been discussing elliptical planetary orbits, that’s a heliocentric concept.
Here’s where the problem lies: Kepler 1st law states that planetary bodies have elliptical orbits. They don’t, but that’s the rationale required by the paradigm of heliocentricity. However, since we’ve made this choice, we now have to rationalize why planetary orbits are ellipses. It can’t be done.
Fortunately planetary orbits are only elliptical in the theoretical heliocentric model. In the Geocentrospheric model the planetary bodies have, what we’ve seen called, cardioid orbits: The empirical reality is that the epicycles in planetary orbits cause them to be heart-shaped. This is what we observe as an epicycle, and in the heliocentric paradigm it’s rationalized as retrograde motion.
The difference between heliocentric and Geocentrospheric systems is relative motion. The .GIF above shows the difference in relative motion between the two systems. Note that the relative position of the three bodies, blue, red and yellow, remains the same at all time on both sides of the .GIF. If your frame of reference happened to be one of the bodies in the system, then the position of the bodies that you would observe stays the same but you wouldn’t be able to tell what the relative motion was.