Whether purity of heart has been acquired or not, is what can be known to the person himself who has acquired it. It can never be known with the help of either the Vedas or inference. They who have no expectations, who discard every sort of riches by not keeping anything for future use, who are not covetous, and who are free from every sort of affection and aversion, celebrate sacrifices believing only that their performance is a duty. To make gifts to deserving persons is the end of all riches.
अनागममनैतिचं प्रत्यक्षं लोकसाक्षिकम्। धर्म इत्येव ये यज्ञान् वितन्वन्ति निराशिषः॥ उत्पन्नत्यागिनोऽलुब्धाः कृपासूयाविवर्जिताः। धनानामेष वै पनास्तीर्थेषु प्रतिपादनम्॥