Find a comfortable, quiet place in your home or outside in nature.  Sit on a chair with the spine straight, or sit comfortably on the floor or ground with your legs crossed.  The idea is not to be too rigid or too loose—just be comfortable so that you can meditate without being distracted by the body.  An experienced instructor can help you learn the affirmations used to balance the chakras and channels.  Until you learn them, you can just sit with your hands open on your lap with the palms facing upward.  Ask your Kundalini to rise and help you become thoughtlessly aware.  You can also awaken your Kundalini and then try other guided online meditations .