This intellectual seclusion is referred to in the Quran by these words: Tafakkur, tadabbur, tazakkur, tawassum, taaqqul, etc. All these words mean thinking deeply on everything. This action of thinking is extremely important. It is by thinking that all noble qualities are produced, for instance, wisdom, realization, intellectual development, increase of faith, discovery of deeper meaning, etc.
This intellectual seclusion is extremely important for a believer, but there is one necessary condition for it, and that is to save oneself from all kinds of distractions. Without this, intellectual seclusion is just not possible. The truth is that, intellectual seclusion is another name for continuous intellectual activity. By this intellectual activity, we achieve what is called in the Quran, an increase of faith. (The Quran, 8:2 ) If there is no intellectual activity, there is no increase in faith.
The Intellectual Horizon
There are several planes upon which the intellect functions. We can say that there are many different levels. But higher truths can be experienced by only those individuals who have a high intellectual horizon. Those with a lower intellectual horizon cannot be acquainted
with higher realities. The same is true of faith.
This is illustrated by the interactions of some of the companions of the Prophet, Umar ibn al-Khattab (d.