Buddha was asked, “What is the biggest charity?” He answered, “It is a service of Truth.” The thing of teaching what is to people and awakening them is the biggest thing to build virtue in the human world. What does the term, charity or building virtue, mean? It means what blesses people. In other words, it is an activity of a charity to practice things which are blessings to other people. By the way, the very service of Truth becomes to bless people and to awaken them most. That is why a service of Truth is the greatest charity.