Why meditation is developed?

From the very dawn of Indian history the Indo-Aryans gave a great deal of importance to the culture and development of the inner faculties of human life. As a result of long experience and experiment, they developed a special system of exercise for increasing the strength, purity and power of those faculties. Having established a fundamental theory that of being, they discovered various methods of feeding, strengthening, resting and re-energizing them.
The science of mediation was developed in India for the purpose of supplying the mind with the necessary nourishment and food, and for giving it proper exercise, rest and relaxation and also for furnishing it with the necessary conditions for growth. Therefore, meditation can very well be defined as the science of supplying the mind with food, exercise, rest, relaxation, and favourable environment necessary for the manifestation of its highest perfection.
Let us try to understand this analogy. In receiving the food for our physical body, the natural law is , that in the course of metabolism we undergo a process of disbursement and waste, which must be replenished by drewaing ina supply from some sources of nature. We eat because we need certain elements and vitamins which we have spent in the course of our work. But the food we eat is not the only kind which we supply to the physical body.The five senses also are drawing in food for its nourishment and development. In the selection of food we have to be very careful, as there can be harmful as well as beneficial foods. For the replenishment of our mental energy, too, we draw in naturally from various external sources. There is a special process of meditation which gives us the power of putting ourselves inconstant touch with these subtle sources from which we can so abundantly draw our spiritual food, without incurring any expenditure. Therefore, all the consideration we pay in selecting our physical food, must likewise be applied to the selection of the spiritual also.