So to live irresponsibly like cats and dog is very risky life, because so long we shall be engaged in the matter of sense gratification—material life means sense gratification—we shall increase our prolongation of repetition of birth and death. So this irresponsible life of eating, sleeping, sex life and defense like cats and dog will not help us. Therefore . . . Because this kind of activities will oblige me to accept another body. And as soon as we accept another material body we become subjected to the stringent laws of material nature. And the material miserable conditions are summarized into four items: birth, death, old age and disease. So those who are not in knowledge of the spirit soul, they are very irresponsibly prolonging his life in material activities. Material science could not find out the spirit soul within the body because the magnitude, the dimension of the spirit soul, is very, very small. That is stated in Padma Purāṇa,
- bālāgra-śata-bhāgasya
- śatadhā kalpitasya ca
- bhāgo jīvaḥ sa vijñeyaḥ
- sa cānantyāya kalpate
- (Śvetāśvatara Upaniṣad 5.9)
Bālāgra means the tip of your hair. Divide into ten thousand parts—that one part is the dimension of the soul. That is there within the body. So material science has no such instrument or perfection of study that they can see such a small particle. Therefore these foolish people say there is no soul. But the practical application—the soul is there; therefore the consciousness is there; therefore the body is working in order. The soul is minus, the consciousness is minus—this body is a lump of matter.