karmāṇi manaso 'bhavan

drsyamanah-being perceived; vina-without; arthena-substance or reality; na-not; drsyante-are seen; manobhavah-creations of mental concoction; karmabhih-by fruitive activities; dhyayatah-meditating upon; nana-various; karmani-fruitive activities; manasah-from the mind; abhavan-appear.