You ought to be aware that the real purpose of the Law is to impart the knowledge of truth and of right action. The knowledge of truth consists in the cognisance of God and the whole universe with its inner significance, especially that of religion, and the knowledge of happiness or misery of the next world. Right action consists in following those actions which are useful for happiness and avoiding those which lead to misery. The knowledge of these actions has been called practical knowledge. This is divided into two kinds: external actions, the knowledge of which is called Fiqh, that is, Theology; and actions pertaining to feelings, such as gratitude, patience, and other points of character to which the Law has urged us or from which it has prohibited us. This is called the knowledge of continence and of the next world. Abu Hamid in his book The Revivification of the Sciences of Religion seems to be inclined to this kind, and as the people have always turned away from the former kind of knowledge and have turned themselves to the second which leads them easily to piety, the book attained its name. But we have wandered from our own purpose and will now return to it.
If the purpose of the Law is to impart the knowledge of truth and of right action, this cannot be attained except by one of the two methods: viz, by conception or verification such as Mutakallimun have maintained in their books. There are three methods of verification open to people: philosophy, dogmatics and exhortation. There are two methods of conception: either by the thing itself, or by its like. As all people cannot by their nature understand and accept philosophical and dogmatic arguments, together with the difficulty of learning the use of inferences and the long time it takes to learn them, and the purpose of the Law being to be quite common among men, it is necessary that it should contain all kinds of verifications and conceptions. Among the methods of verification there are some which are meant for the common people: that is, exhortative and dogmatic, the exhortative being more common than the other. There is one method which is meant solely for the learned, and that is the method of rational inference. Now, it is the primary aim of the Law to improve the condition of the many without neglecting the few, and hence the method of conception and verification adopted are common to the majority.
These methods are of four kinds: the first is that which, while in particulars the same in both, that is, both exhortatively and dialectically, is still true by conception and verification. These are syllogisms of which the minor and the major premise are certain, besides being easily imagined and well known. These are set before the deductions which are drawn from them, and not from their likes. To this kind of religious injunction there is no interpretation, and one who denies them or puts an interpretation upon them is an infidel. The second kind is that the premises of which although well known or easily imagined are also positively established. Their conclusions are drawn by analogy. Upon these, that is, their conclusions, an interpretation may be put. The third kind is just the reverse of the second, that is, the conclusions are themselves intended and their premises are well known or easily imagined without being positively established. Upon these also—that is, upon the conclusions, no interpretation can be put, but the premises may sometimes be interpreted. The fourth kind is that the premises of which are well-known or conjectural without being positively established. Their deductions are by analogy when that is intended. It is the duty of the learned men to interpret them and of the common people to take them exoterically.
In short, all that should be interpreted can be grasped by philosophy alone. So the duty of the learned person is to interpret, and of the common people to take it literally, both in conception and in verification. The reason for the latter is that they cannot understand more. A student of law sometimes finds interpretations which have a preference over others, in a general way by verification: that is, the argument is more convincing with the interpretations than with the literal meanings. These interpretations are common and it is possible for them to be admitted by any whose speculative faculties have been developed in controversy. Some of the interpretations of the Asharites and the Mutazilites are of this type, though the arguments of the Mutazilites are generally the more weighty. But it is the duty of the common people who are not capable of understanding more than exhortation to take them exoterically. Indeed, it is not proper for them to know the interpretations at all.
Thus there are three groups into which men have been divided: Those who are not included amongst those who should know the interpretations. These are common people who are guided by exhortation alone. They form a vast majority: for there is not a single rational being who cannot accept a result by this method. The second are dogmatic interpreters. These are so, either by their nature only, or both by nature and habit. The third are those who can be definitely called interpreters. These are the philosophers, both by nature and by philosophical training. This kind of interpretation should not be discussed with the dogmatists, not to speak of the common people. If any of these interpretations are disclosed to those not fit to receive them—especially philosophical interpretations—these being far higher than common knowledge, they may be led to infidelity. For he wishes to nullify the exoteric meaning and to prove his interpretation. But if the exoteric meaning is shown to be false without the interpretation being established, he falls into infidelity, if this concerns the principles of the Law. So, the interpretations should not be disclosed to the common people, and ought not to be put into exhortative or doctrinal books—that is, books written with an expository purpose in view—as Abu Hamid has done.
Hence, it is necessary that the common people should be told that those things which are exoteric, and yet cannot be understood easily, the interpretations of which it is impossible for them to understand, are parabolical, and that no one knows the interpretation thereof except God. We should stop at the following words of God: “None knoweth the interpretation thereof except God.”[18] This is also the answer to the question about some of those abstruse problems which the common people cannot understand: “They will ask thee concerning the spirit: answer: The spirit was created at the command of my Lord, but ye have no knowledge given to you, except a little.”[19] Again, one who interprets these to persons not fit to receive them is an infidel, because he leads others to infidelity, which is quite in opposition to the purpose of the Law. This is especially the case when corrupt interpretations are put on the principles of the Law, as some men of our own times do. We have known many people who think they are philosophers and hence claim to find out strange things through philosophy, which are in every way contrary to religion, and they do not admit of any other interpretation. They think they must disclose these things to the common people. But by the disclosure of wrong notions they lead them to eternal destruction.
The difference between their aim and that of the jurists can be made clear by the following example. Since it is not possible to make every one an expert physician a certain physician laid down some principles for the preservation of health and the prevention of diseases, and he allowed the use of some things but prohibited others. Now a man comes and tells the people that the principles laid down by that physician are not correct and declares them to be false, and they become discredited in the eyes of the people; or says that they are capable of interpretations which they cannot understand and cannot verify by practice. Do you think that people in these circumstances will ever act upon those things which are useful for their health and for the prevention of diseases or that the man himself will ever be capable of acting on them? No, he will be quite incapable of doing so and thus will lead them all to destruction.
This is the case when those interpretations which they cannot understand are correct, to say nothing of those that are wrong. For they will not believe in health to be preserved, nor disease to be prevented, to say nothing of the things which preserve health or prevent disease. This is the condition of that man who discloses interpretations of the Law to the common people and those not fit to receive them. And hence he is an unbeliever.
The simile which we have described above is a real parallel, and not merely fanciful (as some may think) as it is correct in every respect. For the relation of the medicine to the body is the same as that of the Law to the soul. A physician is one who seeks to preserve the health when he finds it good and tries to restore it when it is missed. In the same way a religious law-giver is one who takes care of the health of souls, which is called piety. The Quran also makes clear its purpose, through religious action, by many verses. For instance: “O true believers, a fast is ordained unto you as it was ordained those before you, that ye may fear God”[20] and “Their flesh is not accepted of God, neither their blood; but your piety is accepted by Him”[21] and: “For prayer preserveth a man from filthy crimes and from that which is blameable.”[22] There are many other verses of the same nature in the Quran. Thus, we see, a religious law-giver seeks to establish this kind of health by religious knowledge and practice. This is the health upon which depends happiness and in the case of its absence the misery of the next world.