Let's have a look at snake pose or Sarpasana. In Sanskrit, Its called Sarpasana
How to do it?
First lay down on your belly, with your forehead on the mat, and your arms to your sides. For the easy version, you have your feet hip distance apart. Start to engage your leg muscles, toes pointing to the back of the room. Engage your glutes as well. Roll the shoulders back and down. Interlace your fingers, and press the palms together. Brush the nose against the mat to lift the nose up. Lift the shoulders, and the chest, and lift your hand off of the body as well. Your toes are still pressing down. Stay there for a few breaths, and gradually release down.
Now you can relax your arms and your legs, you can turn your head to the side and rest.
Some variations for Sarpasana is done with your legs together. If you have some problems with the cervical spine or the neck, it might be uncomfortable to lift the chin up. In this case, you can look forward or look down.
Try to feel the energy flowing from your toes to the top of your head. Feel your chakras illuminating as the energy flows through. Yoga poses are not just for fitness, they are there to help you get in touch with your energy system too. Try to imagine as if you are breathing from your toes to the top of your head.