Liberation means not to be under the influence of the modes of material nature, not to be infected by the modes of material nature, especially passion and ignorance. That is mukti. Mukti is not very wonderful thing. It is difference of consciousness. Everyone is conscious materially: "I am this body," "I am American," "I am Indian," "I am this," "I am that." This is one consciousness. And when this consciousness is purified, tat-paratvena nirmalam . . . nirmalam means completely cleanse. That is the bhakti platform. Sarvopādhi-vinirmuktaṁ tat-paratvena nirmalam (CC Madhya 19.170). When one becomes purified completely from all this designation . . . the body is designation. So according to the body, we are placed in different designation: "I am human being," "I am cat," "I am dog," "I am demigod," "I am American," "I am Indian," "I am brāhmaṇa," "I am kṣatriya"—so many designations. So bhakti platform is sarvopādhi-vinirmuktam, anyābhilāṣitā-śūnyam (Brs. 1.1.11).
Just like Caitanya Mahāprabhu says, "I am not a brāhmaṇa. I am not a kṣatriya. I am not a vaiśya. I am not a śūdra," because the material human society designation is the varṇāśrama according to Vedic civilization. Even those who are not on the varṇāśrama platform, they are animals. That is Vedic civilization. So to come to the platform of truth, one has to know what are the defects of material life, how it is taken by the asuras. That is being described by Kṛṣṇa, asatyam, asatyam apratiṣṭham, apratiṣṭhaṁ te. Te means these asuras. Jagad āhur anīśvaram (BG 16.8). It is controlled by the Supreme.