Everybody has a kind of filter between mind and tongue. That filter controls our words and show a PART OF US to this world. I believe, meditation is one of the techniques which tries to make this filter useless. As we go on achieving high strengths and purity through meditation, we will gradually speak what we feel and won't try to filter out anything that comes out of our mind. That is the state where we show OUR COMPLETE SELF to this world.