I'm practice meditation for quite sometimes. This is another "shortcut" that people trying to sell.
Just do meditation, sit down in a meditation pose, close your eyes, focus on your breathing, clear your thoughts and minds.
Focus on your breathing, find a spot to focus, for example your nostrils. Feels the air breath in breath out, let go of everything. If thoughts came back, acknowledge and let go your thoughts and focus back to your breathing. constantly trying to empty your mind by focusing on your breathing. DO NOT FORCEFULLY let go. Do thing peaceful and slowly. Acknowledge your thought and minds and let go of them slow and peacefully. Thoughts will always come back and you always have to let go of them. Sometimes you may even wonder very far on your thoughts, it's OK. Just acknowledge them and come back to breathing. Remember the keys of meditation is to let go, not to gain. If your mind constantly thinking i meditate so I can gain something, you will not let go and you wont have peace in your mind.