Yagna performed by persons who don't linger on fruits as a result of it and done to rules without desire or hatred and in unattached mood is Sathva.

Done with self possess conceit arrogance and ostentation in different irkshome mood is Rajasa.

Those started in ignorance without perceiving the ability and talent of the persons to perform and complete and unaware of the resulting consequences and after effects of distress thereby caused to others is Thamasa.

Knowledge able to differentiate work and leisure fitness to work fearlessness bravery bonded ness or involvement and relief is Sathva.

Knowledge unable to differentiate Adharma and Dharma performable work non performable work and work and leisure in reality is Rajasa.