Two questions that don't seem to have been answered yet:
Why had people previously thought that the Sun is fixed?
In fact, since the time of Newton in the late 1600's people have known that the Sun is in motion, wobbling around the center of mass of the solar system. And, before Copernicus, people thought the Earth was fixed, and the Sun moved around it. So the idea that the Sun was perfectly fixed really only lasted about 130 years.
And the reason Copernicus assumed it was fixed is that, at the time, that was the simplest model that would match the motions of the planets that he could observe.
Is this correct planets in helix path or spring like path?
Well, sort of. That picture looks like a frame from a video that's been circulating on the internet, and the video overall is hugely wrong in a lot of ways. But it is true that the whole solar system is moving around the center of the galaxy, and the plane of the solar system is tilted about 60$^\circ$ compared to the plane of the galaxy. So, if you combine the motion of the planets around the sun with the motion of the whole solar system around the center of the galaxy, you do get a kind of corkscrew pattern. But if you hear the term "vortex" for the solar system, that's a sign that you're in nonsense territory.