[0xbadcafebee]

It's fine to understand what the code is doing in a shallow way. But this leaves out a lot of important information. Information that isn't immediately obvious just by reading code, that can help you avoid problems and understand the system in-depth, without years of trial and error. Which is why they wrote a manual. You can also both read the code and the manual, but the manual will give you much more knowledge in a smaller amount of time.

[saagarjha]

In my experience this isn't necessarily true.