How important is to understand the message of the sentence before rewording it?

You have to first comprehend the meaning otherwise you will get it wrong

It is very important that you first fully understand the message behind the sentence before we start writing it in our own different words. Rewording is actually all about rephrasing a text while keeping the meaning of the original text in your mind. For this purpose we must read a sentence or text again and again to get the full understanding of the ideas portrayed in it. It is very much possible that we may not get the exact meaning of the sentence as the author has presented it when we read it first. The more carefully we read it, the better we get to understand it.
The following link has described this point very profoundly.


How to Reword Sentence Correctly http://writing.colostate.edu/textbooks/informedwriter/chapter3.pdf

Understanding the message of a sentence, the readers level of understanding and the overall goal of the piece are most important.

Its Very Important to understand the message ,, how else can you reword it if you dont know the meaning