There are unwanted emotions and pain that goes along with any birth. Preston insists the Scientology-friendly labour doesn't forbid the mum-to-be from yelling out in pain. Screaming is fine... It's the words. If you can avoid saying certain phrases and words... Just try to keep it as quiet as possible. Of course, you are going to groan and yell. It hurts. Just keep it to a minimum.

"Travolta supports Cruise's silent birth method" The Hindustan Times. New Delhi: April 5, 2006.