If we look at the success and failure of various propagation efforts throughout history, we find two primary causes for success. The first of these is the truth of that which is being called towards. 

The more truthful it is, the more harmonious it will be with both sentiment and reason. People are much more ready to accept it. 
We see in the Qur’ân how a party from among the Jinn heard the Prophet (peace be upon him) reciting the Qur’ân and said: “'We have really heard a wonderful Recital! 'It gives guidance to righteousness, and we have believed therein. We shall ascribe no partner unto our Lord.” [Sûrah al-Jinn: 1-2] 

They, in fact, were immediately inspired to call their people to the truth and warn them. Allah says: “Behold, We turned towards thee a company of Jinn, (quietly) listening to the Qur’ân. When they stood in the presence thereof, they said, ‘Listen in silence!’ When the (reading) was finished, they returned to their people, to warn them. They said, ‘O our people! We have heard a Book revealed after Moses, confirming what came before it. It guides to the truth and to a Straight Path. O our people! Respond to Allah's summoner and believe in Him. Allah will forgive you some of your sins and guard you from a painful doom’.” [Sûrah al-Ahqâf: 29-31] 

Some non-Muslim societies enjoy a considerable degree of justice and respect for human rights, principles that are outlined in the Divine Law. Because of this, Allah gives their societies stability, longevity, and power to the extent that they observe these principles. History attests to this fact. 

The second factor for successful propagation is the faith that the propagator has in it. Firm conviction in the correctness of what he is calling towards makes him into an example for others in both his words and his deeds. It gives him the ability to. 

Allah says: “And We appointed, from among them, leaders, giving guidance under Our command, so long as they persevered with patience and continued to have sure faith in Our Signs.” [Sûrah al-Sajdah: 24] 

There are four crucial words and phrases in this verse: “leaders”, “giving guidance”, “patience”, and “sure faith”. 

For people to be honest in what they call towards and be true leaders who can guide others, they must have patience. They need to be able to persevere without faltering in their faith when they are confronted by those who disdain what they believe in. they need absolute conviction that is not tainted with the slightest doubt. 
We must demonstrate our convictions in our deeds, our conduct, and our way of life. Those who carry with them the true religion in their hearts and have confidence in what they have do not run after the scraps that fall from the tables of others.

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