Karma (action), really speaking, is the practice of Dharma (right conduct). The Upanishads (scriptures) give us guidance on what has to be done and what should be avoided on the spiritual journey. 'Dharmo Rakshati Rakshitah': Dharma protects those who protect it, say the scriptures. If people come forward to foster the sources of Dharma, that good act, by itself, will help foster those who practice it. The scriptures direct us to revere the mother, father, preceptor and guest as God and also, warn us that Truth and Right Conduct should never be neglected. So, they offer clear dos and don’ts. Whatever is conducive to your progress in goodness, accept it; avoid other counsels—thus instruct the scriptures.
– Sathya Sai Vahini, Chap 10: "The Yogis".