Every activity of vibrations produces a certain sound according to its dome of resonance, and according to the capacity of the mold in which the form is shaped. This explains the idea behind the ancient Hindu word Nada Brahma. which means: Sound, the Creator-God.

By the law of construction and destruction, as well as by addition and reduction, the different forms in this objective world group together and change. A close study of the constant grouping and dispersing of the clouds will reveal many different forms within a few minutes, and this is a key to the same process which can be seen all through nature. The construction and destruction, addition and reduction in forms all take place under the influence of time and space. Each form is shaped and changed subject to this law, for the substance differs according to the length, depth, height, figure and shape of the mold wherein the form is modelled, and the features are formed according to the impression pressed upon it. It takes time to make a young and tender leaf green, and again to change it from green to red and yellow, and it is space that makes of water either a ditch, well, pond, stream, river or ocean.

The dissimilarity in the features of various races in different periods can be accounted for by the law of time and space together with climatic and racial causes. The Afghans resemble the natives of the Panjab, and the Singalese the people of Madras; Arabs are similar in feature to the Persians, and the Chinese resemble the Japanese; Tibetans resemble the natives of Bhutan, and the Burmese closely resemble the Siamese. All this proves that the proximity of the lands which they inhabit is largely the cause of likeness in feature. As wide as is the distance of space, so wide is the difference in feature among people. The similarity in form of germs, worms and insects is accounted for by the same reason. Twin-born children as a rule resemble each other more closely than other children.

Form depends mostly upon reflection; it is the reflection of the sun in the moon that makes the moon appear round like the sun. All the lower creation evolves by the same law. Animals which begin to resemble man are among those which are in his surroundings and see him daily. A man who has the care of animals begins to resemble them, and we see that the butler of a colonel has the bearing of a soldier, and a maid working in a nunnery in time becomes like a nun.

As all things are subject to change, no one thing is the same as it was a moment before, although the change may not be noticeable; only a definite change is perceptible. In a flower there is a change from bud to blossom, and in a fruit from the unripe to the ripe state. Even stones change, and some among them have been known to become perceptibly altered even in the course of twenty-four hours.

Time has a great influence upon all things and beings, as may be seen by the change from infancy to youth, and from middle age to old age. In Sanskrit, therefore, time is called kala, which means destruction, as no change is possible without destruction; in other words, destruction may be described as change. All things natural and artificial that we see today differ vastly in their form from what they were several thousand years ago, and not only can this be noticed in such things as fruit, flowers, birds and animals, but also in the human race; for from time to time the structure of man has undergone various changes.

The form of man is divided into two parts, each part having its special attributes. The head is the spiritual body, and the lower part the material body. Therefore, in comparison with the body, the head has far greater importance. Thereby one individual is able to recognize another, as the head is the main distinctive part of man. The face is expressive of man's nature and his condition of life, also of his past, present and future.

When asked if the face would be burned in the fire of hell, the Prophet answered: "No, the face will not be burned, for Allah hath said: "We have modelled man in Our own image"."

The likeness between things and beings, as well as between beast and birds and man, can tell us a great deal about the secret of their nature. The sciences of phrenology and physiognomy were discovered not only by examining the lives of men of various features, but chiefly by studying the similarity that exists between them and animals. For instance, a man having the features of a tiger will have a dominant nature, coupled with courage and cruelty. A man with a face resembling a horse is by nature subservient; a man with a face like a dog will have a pugnacious tendency, while a mouse-like face shows timidity.