Instructions
Sit in a comfortable position. Lengthen your spine.
Touch your thumbs and index fingers together. Rest the backs of your hands on your knees. Close your eyes.
Breath naturally. Focus your attention on your breath. Simply observe the way in which the breath flows in and out through your nose.
Whenever you notice your mind wandering, return your attention to your breath.
Continue meditation for as long as you like.
Modification:
Place a firm cushion or rolled mat under your bottom to bring more length to your spine.