Furthermore...
Furthermore, this verse indicates that this purifying drink is so fragrant that it is enjoyed both through the senses of taste and smell. On the whole, /kafur/ has been considered as having the same value as musk and ambegris; the famous sweet fragrances.
Then, it refers to the fountainhead from which this cup of divine drink is filled; and says, "A fountain, where from the servants of Allah drink, flows in abundance (wherever they wish) ." This purified fountain is under their control in such a way that it flows wherever they wish.
It is worthy of mention that in a tradition from Imam Baqir (p.b.u.h.) it is quoted that in a description of the fountain he said that this fountain is placed in the house of the Prophet and from there it flows to the houses of the previous prophets (p.b.u.h.) and believers.
It is true that, as in this world, the fountains of knowledge and mercy flow from the Prophet's house toward the servants of Allah and the righteous, and in the next world (which is a great illustration of this condition) the fountain of the divine pure drink will originate from his house and therefore, to the houses of other believers.
The term /yufajjirun/ is based on the word /tafjjr/ which, itself, is derived from the root /fajara/ which means 'to cause water to flow' or 'to break' on a large scale, whether breaking the earth or anything else. When, as it seems, the light of the morning breaks the dark curtain of the night; this light is called /fajr/. Also, they call an evildoer /fajir/ (wicked) , because he breaks open the curtain of modesty and piety. However, in this verse it means 'the opening of the ground'.
It is remarkable that among the many blessings of Heaven, referred to in this Sura, the first to be mentioned is this 'special pure fragrant drink'. Perhaps, because after passing their account on the Day of Judgment and on their arrival into Heaven, by drinking this drink, they clear their hearts from any grief, discomfort and impurity. Then, they can benefit from the other divine blessings, while they are basking in the love of Allah.
In the following verses, the deeds and qualifications of the 'Righteous' and 'servants of Allah' are described. Their eligibility for such unparalleled blessings is reasoned through having five characteristics. It says: " They fulfill (their) vows and fear a Day; the chastisement of which is widespread ".