Patanjali says that we can meditate on anything that our heart desires. The important thing is not what we meditate on, but more that we meditate. And then gradually to meditate more and more on what corresponds to the innermost longing of our heart. The practice of meditation. . . Gradually works its magic in stilling the mind. (42)

The Wisdom of Patanjali's Yoga Sutras: A New Translation and Guide by Ravi Ravindra