The word seeing can mean more than one thing:

• In common usage, the word means visual perception
• In astronomy, seeing is a technical term related to the blurring effects of air turbulence in the atmosphere
• In the occult seeing refers to "the sight" or the ability to see auras or to predict the future; see fortune-telling.
• (someone) being in a romantic relationship
• Seeing is the English title of José Saramago's 2004 novel Ensaio sobre a Lucidez. Before the announced publication of the English translation of the book in 2006, it was also referred to as Lucidity and Essay on Lucidity [http://www.latinoweeklyreview.com/article.cgi?article_id=524.