Spiritual body is existing, and spiritual advancement means first of all to know spiritual identification of myself. Just like Sanātana Gosvāmī went to Śrī Caitanya Mahāprabhu after retiring from his ministership. So he first of all said that ke āmi, kene āmāya jāre tāpa-traya (CC Madhya 20.102): "Actually, I do not know what I am, and why I am subjected to the miserable condition of life." Therefore the miserable condition of life is this body. Because I get . . . in dream also. When I get another body, sometimes we find that on top of the very tall bamboo or tall mountain, I am just now, I'm falling down. And I'm afraid, I sometimes cry, "Now I am now falling down." So this body, this material body, which body I belong to, which I am . . . actually, I do not belong to any of these bodies. I have got a separate spiritual body.
So this human life is meant for that realization that, "I am not this material body. I am spiritual body." Then next question will be, "Then what is my function?" In the present body, under some material condition I am thinking, "This is my body," and the body is produced under certain condition of this country or this family; therefore, "This is my family, this is my country, this is my nation." Everything in bodily concept of life. And if I am not this body, then in relationship with this body, either my family or my country or my society or my other relationship, they are also false, because the body is false.