Meditation is all about acquiring a state of open, non-judgmental, and non-discursive attention to the contents of consciousness, whether pleasant or unpleasant. Cultivating this quality of mind has been shown to modulate pain, mitigate anxiety and depression, improve cognitive function, and even produce changes in gray matter density in regions of the brain related to learning and memory, emotional regulation, and self-awareness.
Besides all these nice and reasonable but somewhat dry benefits, meditation is the path to finally enjoying a mind that is undisturbed by worry, merely open like the sky, and effortlessly aware of the flow of experience in the present.
Meditation and religion
Meditation has a very long tradition in just about every religion, including Buddhism, Hinduism, Sufism and Christianity. If you feel comfortable with any of these, you can practise meditation in that context – if not, meditation will work equally fine for you because it is also independent of any belief system.
There are many spiritual teachings out there promising everything if you just believe in what someone else tells you. Meditation is the opposite of this. It is not about believing anything, but about finding out for yourself what happens if you stop the bad habit of thinking all the time.