भावशुद्धिः परं शौचं प्रमाणे सर्वकर्मसु ।। अन्यथाऽऽलिंग्यते कांता भावेन दुहितान्यथा ।। २४ ।।
It is the purity of the feelings that is the criterion for the sanctity of rites. The wife is embraced with one feeling and the daughter is embraced with another.