By serving the father regularly one may cross this world. By serving the mother in the same way, one may enjoy blessed regions in the next. By serving the preceptor regularly, one may acquire the region of Brahma.
पितृवृत्त्या त्विमं लोकं मातृवृत्त्या तथा परम्॥ ब्रह्मलोकं गुरोर्वृत्त्या नियमेन तरिष्यसि।