Abdu’l-Baha As we studied earlier in Hiru no Hoshi, every age, God sends Great Teachers to guide mankind and to teach us what we need to know so that we can become happy and make a wonderful world. In this Day, God sent us Baha’u’llah as our Great Teacher, and Baha’u’llah gave us Abdu’l-Baha to show us and help us understand all the wonderful new teachings that Baha’u’llah brought.