Yama will hesitate to give him the knowledge, not because he cannot teach it. He wants to know whether the little boy is fit for this knowledge. If we are not fit for it, we are not ready to assimilate it. The second bad effect which can come if we are notfit is suppose the knowledge is transmitted to somebody's fit. And now that person becomes an authority about that knowledge and begins to teach a distorted version,. An ina even harmful version, to other people. That can happen again and again in the past. So, eh, that's why yama puts nacicato through this test. Now, what is this qualification, and why is it