Well, i learned meditation when i began karate when i was young, it is an excellant stress reliever and you can feel 100% energized after it.
Heres the kinda How-To of Meditation:
Sit comfortably. A quiet place is often best for some, but not for all
Close your eyes.
Breath naturally.
Sit for about one minute before you begin to allow your heart and breathing to slow.
Gently bring your attention to your breath and begin to think the mantra, gently and easily. Just let it come, don't force it.
Allow your thoughts and feelings to come and go with detachment. Don't try to control them in any way. Just note them, Do not try to force yourself to think of all the problems. You may experience a deep state of relaxation but it is OK if you don't.
Meditate in this way for 20 minutes.
When done, take about a minute to slowly return to normal awareness. Be gentle with yourself when opening your eyes or coming to stand after a meditation. It isn't good for your heart to get up quickly after the state of deep rest that is often a result of meditation. Note: It is OK to glance at a clock to time the meditation. **Don't use an alarm timer.**
I have found the following techniques deepen my experience. You will certainly find your own as well. These techniques are secondary and may be omitted entirely or added later:
Keep your spine straight, head balanced on your cervical column.
Many people like to pray or do visualization after meditating, while still in an altered state. Some teachers of meditation are opposed to this practice while others advocate it. I suggest to do it if it feels right to you. I do.
As a "pre-meditation" preparation, bring your attention to the physical act of breathing. Breath naturally and, with each cyle of the breath, bring your attention to a different part of your body, paying attention to the changes there as a result of the breathing: the rising and falling of the chest; the movement of your belly; the sensation of the air entering and leaving the nostrils; can you feel any movement of your kidney area? How about your pelvis- do you feel your pelvis tilt at all when you breath? What do you do between breaths? Is there a pause? If you don't feel these things it is OK, just consider them, one at a time, and move on. (This can also serve as a short "centering" meditation that can be done while waiting for a stoplight to change, or as a short work or study break.)