All human virtues [kamalāt al-insāniyya] and high aspirations of humankind are tied to oneness of God [tawḥīd] and are realized through the secret of unity [waḥda]. Otherwise, if there is no unity, human being becomes the most unfortunate of all creation, and lowliest of all beings. Without tawhid, human being turns into the most helpless animal and the most gloomy and depressed of all conscious beings. For, human beings have a very interesting nature. We are utterly weak and yet have endless challenges. We are so limited in our resources and yet have innumerable needs. Moreover, human nature is equipped with so many and various capacities and feelings that we can experience thousands of different kinds of sadness, and can enjoy and desire thousands of different kinds of pleasures. And, human being has such aspirations and yearnings that only someone who has disposal over entire universe can fulfill them. Hence, only through the secret of tawhid, which connects him to the One who has control over everything, that human being can be fulfilled and perfected…
O human being! Your service and effort, and your worship will not be wasted. An abode of reward and happiness has been prepared for you. In place of this passing world, an eternal Paradise awaits you. Believe and trust in the promise of the Glorious Creator … It is impossible that He would break His promise. He has no reason whatsoever to turn back on His promise. He has no shortcoming in His power whatsoever. Just as He created your small backyard, He can create– and has created– Paradise for you. He promised Paradise to you, and of course He shall take you in.
Look: we see before our very eyes how each spring millions of species are resurrected with utter order and balance, so easily and so quickly. Surely, the Powerful Glorious One who accomplishes this can keep His promise.