Visualization is a key part in understanding the code. IMO if you can't visualize it then you do not have a proper understanding. Visualization for me is at 10

Visualization is a key part in understanding the code. IMO if you can't visualize it then you do not have a proper understanding. Visualization for me is at 1000 feet and i do not see all the details. I try to think and visualize each as objects and abstract out the details. I do not see colors and whenever possible i relate it to realworld object OR Object which we see in screen. While working on a existing code, the Visualization is not complete. I do not try to visualize all the code in one day, i build it incrementally over a period of time. But before starting with the project/code I get a highlevel overview before getting into details. I believe it is analogous to a Map, I create a mental map of things in code and use it as a reference, build it, improve it. Map is NOT a terrain, it just gives an overview of things.