Question 33:Why do they write the real name of the last Imam, the Imam of Time (a.s.) in the form of disjointed letters as م ح م د))? What is the reason for it?

Question 2: It has been stated in a hadith (tradition) that whoever dies while he does not know the Imam of his time, has died an ignorant death. What does "know" mean here? What kind of identification is it? Provide me a detailed answer, if possible.