After the twelfth, Sattva is another principle numbering the thirteenth. With its aid creatures are distinguished as possess more of it or less of it in their constitutions,
अथ द्वादशके तस्मिन् सत्त्वं नामापरो गुणः। महासत्त्वोऽल्पसत्त्वो वा जन्तुर्येनानुमीयते॥