" In order to ‘go out the door’ safely, we go through a pretty thorough process called pre-breathe. This is the process of flushing all the nitrogen out of our systems by breathing higher concentrations of oxygen. "
- Sunita Williams

In diving or high-altitude aviation activities, it’s crucial to ensure that one's body is prepared for a safe transition from normal atmospheric conditions to environments with significantly different oxygen levels. This preparation process involves pre-breathing, where individuals breathe pure or highly concentrated oxygen to replace nitrogen in their blood and tissues. By doing so, they reduce the risk of decompression sickness, also known as the bends.

The deeper meaning behind this quote lies in its metaphorical application beyond diving and aviation contexts. It underscores the importance of thorough preparation before embarking on any significant endeavor. Whether it’s launching a business or making major life changes, taking time to prepare can help mitigate risks and ensure smoother transitions. The process of pre-breathing symbolizes investing time and effort into understanding the nuances and challenges that lie ahead, thus enabling individuals to enter new situations more safely and effectively.

Sunita Williams is an accomplished astronaut who has spent considerable time in space aboard the International Space Station (ISS). Known for her extensive contributions to both science and exploration, she frequently shares insights about life in zero gravity and the rigorous training required before space missions. Her expertise spans various aspects of space travel, making her a respected voice on safety protocols and the importance of meticulous preparation in high-risk environments like those encountered during space expeditions.