“I said to abu ‘Abdallah (a.s), “A man comes to me and as soon as I speak to him only a part of what I want to say he understands it all. There are also people who come to me and I speak to them all that I want to speak and only then they understand all of my statements. And explain to me what I meant. There are still others to whom I speak at length but they ask me to repeat to them what I have already expressed to them.” The Imam (a.s) then said, “O Ishaq, do you know why is this?” I replied, “ No, I do not know.” The Imam then said the following, “Those to whom you speak only some of what you want say and they understand the rest are those whose intelligence is mixed to take shape with his nature (Nutfa). Those who understand you only when you complete your speech are those whose intelligence is mixed with them in the womb of their mothers. Those who ask you to repeat what you already said are those, whose intelligence is combined with them when they grow up. It is such people who ask you to repeat your statement.”