The parable likening a good word to a good tree follows immediately a description of the final abode of those who do good, which is repeatedly described in the Holy Qur’ån as being a Garden or Gardens wherein rivers flow. This gives us a clue to the real nature of paradise. A good word is like a good tree which gives its fruit in every season, and therefore the fruits which a man will find in paradise, ever ready and within his reach, are only the fruits of his own good deeds. The trees of paradise are in fact
man’s own good deeds, which have grown into trees, bearing a fruit which is an embodiment of the spiritual fruits of the good deeds of this life. It should also be noted that, as good deeds are likened to fruit-bearing trees, faith is likened to water repeatedly in the Holy Qur’ån, being the source of physical life. It is for this reason that, just as the righteous are always spoken of as being those who believe and do good, paradise is always described as being a Garden in which rivers flow, the rivers corresponding to faith and the trees of the Garden corresponding to the good which a man does. By the kalimah
(word) is meant a thing, or an affair or a matter, because every matter is termed a kalimah, whether it is a word or a deed (R).