Book excerpt: When something is cooked by fire it changes forms and eventually becomes ashes which eventually turn into an Earth-like mixture of elements. Fire destroys all the bacteria that are harmful to the human body and makes the food safe for the person so that he does not die quickly. The greatness of fire cannot be expounded by mere words but by its actual power when used in a controlled way. The fire elements and the scientific applications of the power of fire have been widely researched by the ancient Rishis and Sages of India to a point where modern science has not reached as yet.