Many times, it is true, that although writers are paid to pen words that normal people can’t, it is also important to remember that they are unique in some sort of way. If everyone could express love like Diane Warren, the Beatles, and even Baby Face, well, everyone then would be able to write a number 1 song.
It turns out that not everyone can.
The best writers are very unique in so many ways because they can somehow express a very common sentiment, which is love like no simple person can. And, they write the most beautiful songs.
See, writing is partly perspective. Each individual is special and one must search within himself/herself in order to express sentiments that only he/she can.