(63) God has not left any other choice but His Caliph on earth and has made the need for him as the definite and eternal destiny of the people and with this description, their struggle to find a replacement for him is useless. In other words, non-advent of Mahdi is a massive misery and irreparable loss and the people’s efforts to fill his vacancy are absurd and vain. In such a terrible and wretched situation, it is better for people to provide the grounds for advent of Mahdi, instead of wasting their time and efforts with such controversies and unproductive efforts. (Question and answer 5)