For the interest of human beings, it is necessary for a bodhisatta to study extensively and to be well informed. Buddhism requires bodhisatta aspirants to learn the Five Vidya (S. vijja, meaning knowledge), these are:
Samgaha-vatthu is the qualities that ensure public unity. The first is liberality or charity (Dana). The second, kindly speech (Peyyavajja), is to speak kind words in a kind manner. The third, beneficial conduct (Atthacariya), means to serve the public welfare. The fourth, equality (Samanattata), is to live the same life as the ordinary people. These four are the means whereby Bodhisattas carry out their work among human beings.
The Sanskrit word “Paramita” literally means “gone to the other shore”, that is to cross from this shore of moral affliction to the other shore of enlightenment. Six Paramita are six ways to the other shore. The first Paramita is Liberality or Charity (Dana), which is of three kinds
“Pusa” is short for “putisaduo”, the Chinese transliteration of Bodhisatta. Briefly, any one who cherishes the lofty aspiration to deliver oneself and all beings from misery and sufferings, and attain ultimate happiness (salvation of oneself and of others), and to release oneself and all beings from ignorance into perfect enlightenment (self-enlightenment and enlightenment of others) is called in Chinese “Pusa”, i.e. Bodhisatta.