Trying to make your mind stop moving won't work; worrying about it only aggravates the situation.
Meditation is defined as "A steady flow of attention to one thing." When the mind is occupied with only one thing, it isn't doing anything else and is more relaxed than at other times. What the attention is on is also important. If you are a spiritual seeker, the attention should be on something spiritual.
Meditation is also defined as "A sufficient concentration of life energy (prana) in one place for a sufficient length of time." This can be attained by the first definition, but it can also be attained spontaneously under the right conditions. Either way, this is the ultimate form of meditation, a true meditative state that more than relaxes the mind - it stops it entirely. Now, that's relaxation of the mind! http://durgama.com