Saying the CPU is like the brain of a computer is a bit cliche but it is an adequate description. The processor, or CPU, does the brunt of data processing on your computer, as well as providing instructions to the rest of the components in the machine. To put it as plainly as possible, the more powerful your CPU, the more powerful your PC. That being said, all components, like your RAM, CPU, or even GPU, need to be within a certain range of power, or you may create bottlenecks within your system that prevent you from reaching maximum possible performance.
