All of the foregoing so firmly prove that after this transient world there will be an eternal world, a hereafter, a realm of felicity, that we are compelled to accept the existence of a hereafter as indisputably as we accept the existence of this world.1
One of the most important lessons taught us by the All-Wise Qur’an, is, then, belief in the hereafter. This belief is so firm and contains within itself so powerful a hope and a consolation that if a person be assailed by old age hundred thousandfold, the consolation derived from this belief will be fully enough. Saying, “Praise be to God for the perfection of belief,” we old people should rejoice in old age.
It can be realized from this comparison how easy it is to make a positive affirmation and how difficult to make a denial and negation. If, for example, someone should say, “there exists somewhere on this earth a wondrous garden containing canned milk,” and someone else should say, “there is not,” the affirmer need only point to the place of that garden or show some of its fruits in order to prove his claim. The denier, by contrast, will have to inspect and display the whole world in order to justify his negation. So too the testimony of two veracious witnesses will be enough to establish the existence of Paradise, quite apart from the hundreds of thousands of traces, fruits and indications demonstrated by those who assert its existence. Those who deny it must examine, explore and sift the infinite cosmos and infinite time before they can prove their denial and demonstrate the non-existence of Paradise. So, o aged brothers of mine, understand how firm is belief in the hereafter.