Nor should one look at the sun when he is in eclipse; nor at his image in the water, nor at midday when he is at the meridian. The Rishis, on account of their worshipping the two twilight's, with great regularity succeeded in acquiring longevity.
नोपसृष्टं न वारिस्थं न मध्यं नभसो गतम्। ऋषयो नित्यसंध्यत्वाद् दीर्घमायुरवाप्नुवन्॥