When you begin meditating, the most important thing is to establish a daily practice – you need to focus on just showing up and doing it! Once you are meditating on a regular basis, then the focus shifts to meditating correctly.
If you just space out and let your mind wander, you won’t experience the benefits of meditation. In order to meditate correctly, it’s important to not think about other people or talk to other people in your mind. Don’t work on your to-do list or ruminate on projects at work or school. Instead, when you notice you are thinking, simply bring your focus back to the area of focus (chakra, breath, mantra or yantra). Don’t fight the thought or get frustrated that you are thinking, again, be patient with yourself and just return your mind to the area of focus.
Also keep in mind that a shorter, completely focused meditation is more effective than a longer, spaced-out one.