People’s ability to understand issues and make sense of them varies. Part of the scholar’s insight and proper understanding is that he should speak to each individual and group at the level that their minds can grasp and will not be put off by. In this report, the Commander of the Faithful, ‘Ali ibn Abi Talib (may Allah be pleased with him) advises us to speak to people at their intellectual level about issues that they will be able to understand, and to refrain from talking about that which will be confusing for them and difficult to understand, lest that lead to them rejecting what Allah and His Messenger said, and not believing them. If people hear something that their minds cannot comprehend, they will quickly reject it. Hence the scholar can use various approaches to present his knowledge when speaking to people. So he should speak to ordinary people in a manner that they can understand, then speak exclusively to intelligent people and seekers of knowledge about some subtle matters, and explain them to them. This hadith indicates that one should pay attention to the circumstances of the audience and their ability to understand. It also indicates that we should choose a clear and straightforward approach when calling people to Islam..