Hòa Hảo is a religious group in Vietnam that started in the 1930s. They follow Buddha's teachings and believe that by doing good things, they can become happy and successful.
Think of Hòa Hảo like a big group of friends who really believe in doing good things. They have their own special rules and believe in living a simple life without fancy things. They also believe in helping others who are less fortunate than them.
Their leader, Huynh Phu So, was a very kind person who wanted to help people in need. He taught the Hòa Hảo followers to be kind and helpful too.
Nowadays, Hòa Hảo is an important part of Vietnamese culture and history. People who follow Hòa Hảo believe that being kind and helpful is the way to a happy life.