In early times and till now, a literate is considered to be someone who can read and write, but there is also what is called ‘creative writing’. To be a successful writer, you must show great dexterity in creative writing.
Some people are talented in writing- such people do not have to rack their brain for them to write reasonably- they can write stories, articles, songs etc. without preparing. Talented writers have the potential of being a successful writer if they are dedicated to writing.