Next, they also speak of Uttarāyaṇa. If we consider what it means, that doubt will be cleared and the matter settled. Worship done with understanding, sādhana done with understanding, purifies the heart; doubt and sloth are left behind. ‘Uttarāyaṇa’ means a clear sky. That is, the time when there are no clouds in the sky, no haze, no smoke of any other kind, and none comes, and the sun shines clearly, is called Uttarāyaṇa. This is the gross meaning, that is, the reckoning of time as it relates to the body.