If you chant this Hare Kṛṣṇa, then you will very easily understand that you are not this body; you are spirit soul, ahaṁ brahmāsmi: "I am Brahman." Ceto-darpaṇa-mārjanam. That is the first installment, you'll understand. For self-realization, there are so many different processes. There are mystic yogīs. There are philosophical speculators. There are karmīs. There are jñānīs. And . . . but this process, immediately you will realize that you are not this body. You are not matter; you are spirit soul. Ceto-darpaṇa-mārjanam (CC Antya 20.12, Śikṣāṣṭaka 1).
And as soon as you understand that you are not this body, you are not matter, that you are spirit soul, then immediately you become joyful. That is stated in the Bhagavad-gītā, and actually it is a fact. Brahma-bhūtaḥ prasannātmā na śocati na kāṅkṣati (BG 18.54). As soon as one becomes elevated to the platform of spiritual realization, self-realization, immediately he will be free from all anxieties. Material life means full of anxieties. However great you may be, you are always full of anxieties. But if you come to the platform of spiritual realization, immediately you become free from anxieties. This is the test.
Simply by advertising that you have elevated to the highest platform stage by taking some drugs or medicine or this way or that way . . . no. The result will be practical, that you will immediately feel joyful. Brahma-bhūtaḥ prasannātmā na śocati na kāṅkṣati. And what is the symptom of joyous life? No more hankering, no more lamenting.