Most noble intention is dharma transferring. Let all know enlightenment, understand enlightenment, realize enlightenment and achieve enlightenment and being enlightenment. When you mention good deed is actually natural human way of life, means as a human, it is such habit, once deviated is called unkind deed
To become vegetarian is to step into the stream which leads to nirvana.
If you light a lamp for somebody, it will also brighten your path. He who experiences the unity of life sees his own Self in all beings, and all beings in his own Self.