Polishing enhances the car's paint by removing minor scratches, swirl marks, and oxidation. It involves using a compound and a polisher to smooth the paint surface. Polishing brings out the gloss and depth of the color, making the car look newer. It also prepares the surface for protective coatings like wax or ceramic coating. To achieve the best results, control the pressure and speed carefully to avoid burning the paint. Never rush this process, or you might damage the surface instead of improving it.