What is the purpose of using words? It is to articulate and make known the inner being of oneself.
It is also to give voice and expression to the indwelling divinity - the Self that is part of God.
Many feel that words cannot adequately describe their inner state, and some have great difficulty finding words at all to represent themselves with.
The point of speaking is to make oneself known. To say, "I Am." This is not just for the listener's ears but for one's own ears. And it is not just to express the ego-self, but the self that is a creation of the Divine.
Fear of self-expression sometimes creates a hurdle that one must leap over in order to be seen and heard. In order to leap, the willingness to be vulnerable is needed. The willingness to be nakedly seen, to be viewed with flaws or limitations and also to be viewed in one's beauty.
There are many who have an easier time being viewed in their flaws which they are familiar with than in their beauty.
One learns to have a conversation through practicing the art of listening, but one also learns to have a conversation by practicing the willingness to be vulnerable.