Rooting your Android smartphone has its benefits, otherwise there’s no point in rooting. Rooting is simply similar to JailBreaking in iPhone and related products. The terminology comes from the fact that Android was based on GNU/Linux where the root “user” is the be-all, end-all powerful user that will allow you access to the whole operating system.
Which means, it is dangerous if you do not know what you are doing. So for this tutorial, if you are not comfortable with doing these simple and short steps, then don’t do it. Let somebody else do it for you.
Lastly, make a decision. Do you really want to root your Android phone? You can read this article for the pros and cons of doing so: Why You Should (Not) Root Your Android Phone.