What is the safest way to ride a bike?

When it comes to cycling safety, what precautions should one take to ensure the safest ride possible? Are there specific gear or equipment that are essential for minimizing risks? How important is it to follow traffic rules and signals while biking? Are there any common mistakes that cyclists often make that can compromise their safety? Lastly, what are some tips for staying visible and avoiding accidents, especially during low-light conditions?