"Those who believe, and whose hearts find satisfaction in the remembrance of Allah. for without doubt in the remembrance of Allah do hearts find satisfaction. (Quran 13:28)

The Sign or Miracle is not something external: it is something internal, something in your mind, heart, and soul. It depends on your inner spiritual experience. If you turn to Allah, that light, that experience, will come. If you do not, Allah will not force you.

This is Zikr ذكر ,a memory that is achieved by withdrawal and isolation, Azl عزل .Isolation can be physical, establishing a state of loneliness, alienation from other people, where the believer builds a direct relationship with God while the other way of isolation is mental. For the latter it is not necessary to be physically isolated, it is enough to move away in thoughts from the superficiality of others, i.e. to isolate the heart and at the same time to seek the nearness of Allah.

The Prophet (peace be upon him) was asked: What is the most sublime hadith (speech)? He replied: “When people are speaking and the man glorifies.”

Achieving peace of heart and withdrawal can be facilitated by meeting four conditions: little talk, little food, little sleep, and absence from the company of people.

The little talk sharpens the mind. As long as the word is within us, we control its meaning, but once we have pronounced it, the word rules over us. Many times, we rush after our own words, explaining them unnecessarily. The word has the similar law as money or wealth. We feel ourselves rich until we have nothing. Once we start collecting, the law of money is getting to rule over us, which constantly evokes the sense of poverty in us and awakens the desire for unnecessary acquisition. The law of the word is similar. Too many words often do not strengthen but wear the content, and if we propagate it further, it can extinguish the original intention.

I discuss the little eating and sleep together. It is a proven fact that in a situation when adversities prevail, the capacity of the brain increases. I’m not talking about persistent misery now, it’s completely different. If a person is suffering in order to gain knowledge, the acquired knowledge penetrates much deeper than that of those who are pampered and get the knowledge free of charge. The old emblematic Islamic universities did not pamper their students. They had to struggle to get there and listen to the masters and sheikhs of each discipline. In Arabic, the word student and beggar are the same: Talib طالب .This is not only the case with the acquisition of knowledge, but also with its storage and recall. Memory is also deeper when we eat less and sleep less.
As for withdrawing from community life, it is necessary sometimes. The company of people sometimes means refreshment, but there are occasions when it drags the soul into an earthly swamp what is not needed. By withdrawing we realize that this earthly swamp doesn’t really even exist, we produce it ourselves by talking about it, dealing with it.