Meditation takes a lot of practice and motivation, much like LD, and you won't float any time soon
Although it's true that some people can meditate for days on end, the average person will never achieve that in their lifetime. You are probably referring to Tibetan monks who practice meditation sacredly every day for many hours.
Practically, meditation is a great way to relieve stress and, believe it or not, exercise your mind. There is no link between meditation and spirituality, anybody can do it. The concept of meditation is to clear your mind completely and not think at all. It sounds simple, but try for a moment and you'll realize how difficult it can be. Even sleeping, as I'm sure you know from this forum, involves a heavy amount of thinking.
Here's a very nice guide I recently came across for information on meditation:
http://www.pickthebrain.com/blog/4-r...o-get-started/
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