When you are thinking while focusing your mind for quite a long time or chanting for a spiritual or maybe religious reason, your act can be termed as meditation, or just simply a method of relaxation. When someone meditates, someone gets peace of mind. For example, if someone is emphasized, meditation can greatly help reduce the level of stress, as it is about positivity and not negativity. Here I mean the positive thoughts will overshadow the negative thoughts, thus changing your perspective for the better.
For beginners, I would recommend guided meditation. Guided meditation is one where people who practice meditation are guided by a professional. Someone might be wondering where to get professional, but the answer is simple. Just look at the CD and DVD at your local video store or online. I believe you will get what you need. Or if you can make efforts you can consult with a professional.
One thing you need to know about this kind of meditation is helping you save time. When I started meditating, I only had the idea to sit in a quiet, relaxed place and try to visualize things. I have never had an idea of posture that I have to sit on, how to relax or even how to breathe. It takes a lot of time to finish everything because I have to depend on free online resources.
Meditation basically works by imaginary. Normally one sits down with the legs crossed over and breaths deeply to enable relaxation of the mind. The person generally lives life in an imaginary way, so at a certain time, you feel yourself in a different place. You don't even have to force it, it comes when you are automatically taken to another planet (though not in real life), but at least you feel that way. This is what you experience if you are meditating on good wishes.