So long we have got this bodily concept of life—"I am-Rolls Royce car," "I am rickshaw," "I am American," "I am Englishman," "I am this," "I am that"—so long we are in ignorance. The same example: The man is not rickshaw, I am not motorcar, but I am thinking like that. I am asking that poor fellow, rickshaw-wala, scornfully, because I am sitting in a very nice car. This is going on. But when you become learned, then paṇḍitāḥ sama-darśinaḥ (BG 5.18). Sama-darśinaḥ means one who is learned, he knows that "Although he is pulling rickshaw, poor man, he is also a human being, and I am, although sitting in a very nice, costly Rolls-Royce, I am also human being. As human being, we are the same."
So dehino 'smin yathā dehe (BG 2.13). All of us, the living entity, soul, is within this body, not this body I am. So one who has realized this thing that, "I am not this body, I am spirit soul, and living by nature's arrangement, I have been allowed to live in such-and-such body," then he is learned. That is the beginning. So Kṛṣṇa, from the previous verse . . . that is actual spiritual education. In the world, these rascals are going on, spiritualists. They do not know the very first thing of spiritual knowledge, that "I am not this body." They are doing so many sinful acts on account of this body; still, they are going as religious or spiritualist. Nobody is spiritualist unless one understands his spiritual identification, neither one is religious.
Therefore in the Bhagavad-gītā the last word is sarva-dharmān parityajya mām ekaṁ śaraṇaṁ vraja (BG 18.66), because you rascal fools, you have created so many religious system simply on the differences of body. That is not religion. Real religion is that "I am the Supreme Soul, Parambrahma, Kṛṣṇa. And you are My part and parcel. So we have intimate relation, like father and son. So it is the son's duty to obey the father. That is perfection of life." That's all. Sarva-dharmān parityajya mām ekaṁ śaraṇaṁ vraja. You have created so many religious system on the bodily concept of life—bodily concept of life so strong that even big, big learned so-called religionists, they say that the animal has no soul.