Once can wholly obtain credit by directing the heart towards virtuous behaviours. This he gains only be practising the above four; Otherwise to gain this becomes impossible.
शिष्टाचारे मनः कृत्वा प्रतिष्ठाप्य च सर्वशः। यामयं लभते वृत्तिं सा न शक्या हतोऽन्यथा॥