चरे विशिष्यते सूक्ष्मं स्थावरे स्थूलमेव हि । सलक्षणं सपीठं च स्थापयेच्छिवनिर्मितम् ५ ।
A subtle one is recommended if it be mobile and a gross one if it is stationary. The phallic emblem of good characteristics shall be set up in the seat of the same sort.