Therefore the culture of vidyā, or transcendental knowledge, is essential for the human being. Sense enjoyment in the diseased material condition must be restricted as far as possible. Unrestricted sense enjoyment in this bodily condition is the path of ignorance and death. The living entities are not without spiritual senses; every living being in his original, spiritual form has all the senses, which are now materially manifested, being covered by the material body and mind. The activities of the material senses are perverted reflections of the activities of the original, spiritual senses. In his diseased condition, the spirit soul engages in material activities under the material covering. Real sense enjoyment is possible only when the disease of materialism is removed. In our pure spiritual form, free from all material contamination, real enjoyment of the senses is possible. A patient must regain his health before he can truly enjoy sense pleasure again. Thus the aim of human life should not be to enjoy perverted sense enjoyment but to cure the material disease. Aggravation of the material disease is no sign of knowledge, but a sign of avidyā, ignorance. For good health, a person should not increase his fever from 105 degrees to 107 degrees but should reduce his temperature to the normal 98.6. That should be the aim of human life. The modern trend of material civilization is to increase the temperature of the feverish material condition, which has reached the point of 107 degrees in the form of atomic energy. Meanwhile, the foolish politicians are crying that at any moment the world may go to hell. That is the result of the advancement of material knowledge and the neglect of the most important part of life, the culture of spiritual knowledge. Śrī Īśopaniṣad herein warns that we must not follow this dangerous path leading to death. On the contrary, we must develop the culture of spiritual knowledge so that we may become completely free from the cruel hands of death.