Hi, I thought you may like this Mentalrobics exercise from Braingle.com:
-----------------
Meditation

Meditation is a contemplative practice that calms or focuses the mind. Although meditation is commonly associated with Eastern religions, it is practiced in nearly every religion and is frequently used outside of the religion context for personal development and relaxation.

Relaxation Response [ For more on 'Relaxation Response' go here: http://www.braingle.com/mind/671.html ] and Progressive Muscle Relaxation [ For more on 'Progressive Muscle Relaxation' go here: http://www.braingle.com/mind/545.html ] are examples of non-religious meditations used to calm the mind and body. There are many different types of formalized meditations that follow a specific routine. Beginners will probably find these easier to start with because there are rules to follow. Once you become adept at focusing your mind, you can easily create your own routines.

A basic goal of meditation is to reach a mental state where your mind is free of thoughts. Beginners will probably find it difficult to meditate for more than a few minutes without having distracting thoughts entire their minds, but with practice and determination it is possible to silence the mind.

One technique used to help quiet the mind is to turn your attention to a single object, such as your breathing. Breath awareness and breath counting is used in many meditations. Some people find it helpful to have a mantra, which is a sound, word or phrase that you can repeat to yourself. In the Relaxation Response [ For more on 'Relaxation Response' go here: http://www.braingle.com/mind/671.html ] meditation, the word "one" is used as a mantra.

If you want to start meditating to reduce stress [ For more on 'stress' go here: http://www.braingle.com/mind/534.html ] or for some other reason, it is advisable to pick one or two routines and stick with them. Set aside 15-20 minutes every day to practice and you will quickly improve.
-----------------
For more mind exercises: http://www.braingle.com/mind/