Again, its explanation is in A Guide For Youth. One time, I was asked by my brothers serving me:

"For fifty days (now seven years have passed but the same state)1 you have not asked anything about this ghastly World War that caused turmoil in the globe of the world and is connected with the qadar of Islam; you have not been curious about it. Whereas some religious and ‘âlim people are leaving the jamâ’ah and the mosques and running to listen to the radio. We wonder is there any event greater than this? Or is it harmful to be preoccupied with it?"

I said as a reply: Life's capital is so few. The necessary works are so many. Like concentric circles one within the other, from the sphere of each man's heart and stomach, and the sphere of body and home, and the sphere of neighbourhood and town, and the sphere of country and land, and the globe of the earth and mankind to the spheres of living beings and the world, there are spheres one within the other. Each man may have a sort of duty in each of those spheres. But in the smallest sphere is the greatest, most important and permanent duty. And, in the largest sphere, there may be the smallest and temporary duty occasionally. According to this analogy — the largeness and smallness are inversely proportional —duties can be found. But the attractiveness of the largest sphere causes the necessary and important service to be abandoned in the small sphere and occupied with unnecessary, trivial and âfâkî2 matters. It destroys the capital of his life for nothing and kills his precious life on worthless things. And sometimes, the one who follows this war struggles with curiosity becomes a supporter of one side by heart. He approves of their dhulm and becomes a partner in their dhulm.

While the answer to the first point: Yes, an event greater than this World War and a case more important than the sovereignty over the face of the earth, such an event and such a case have been opened over the head of everyone and especially Muslims that if each man had the power and wealth of the Germans and English and if he has sense as well, he would spend all of it to win that single case without hesitation. Thus, as for the case, relying on the thousands of promises and pledges of the Owner and Absolute Master of the universe, one hundred thousand eminent ones of humanity and countless stars and guides (Murshid) of mankind have unanimously informed and some of them have seen by their eyes that in return for îmân, the case of winning or losing an eternal and perpetual field and property as broad as the earth ornamented with palaces and gardens has opened over the head of everyone. If they do not obtain the document of îmân soundly, they will lose. And in this age, many are losing the such case of them because of the epidemic of materialism. To such a degree that one ahl al-kashf and tahqîq during the sakârât witnessed that in one place out of forty deaths only a few won; the others lost. I wonder, if the sovereignty of the whole world was given to that man, can it recoup the case he lost? Since we know it would be pure lunacy to abandon the services which will make us win such a case and to abandon the duties which employ on that work a wondrous lawyer, who saves ninety per cent from losing that case, and to occupy ourselves with âfâkî3 trivia as though we were going to remain in the world eternally, we Risale-i Nur students have the conviction that if each of us had intelligence a hundred times more than what we have, we would use it only on this duty.

O, my new brothers in this calamity of prison! You have not seen the Risale-i Nur like my old brothers, who entered here together with me. Taking them and thousands of students like them as witnesses, I say and prove and have proved that it is the Risale-i Nur that causes ninety people out of a hundred to win such a great case and that gave to the hands of twenty thousand people in twenty years îmân al-tahqîqî, which is the surety, proof and warrant of that case being won, and has originated from the ma’nawî miraculousness of Al-Qur'an Al-Hakîm and that is the foremost lawyer of this time. Although these eighteen years, by deceiving some pillars of the government with their extremely cruel plots against me, my enemies and the zindiqs and materialists have sent us to prisons and dungeons in order to extirpate us in the past as now, in the steel fortress of the Risale-i Nur, they have been able to dispute against only two or three of the one hundred and thirty pieces of its equipment. That means it is sufficient to obtain it for those who want to retain a lawyer. Also, fear not, the Risale-i Nur cannot be banned; except for two or three, its important risales were circulating freely in the hands of the deputies and pillars of the Government of the Republic. InshâAllah, in order to make the prisons real reformatories, someday, fortunate governors and officials will distribute those Nûrs to the prisoners like bread and medicine.