Prahlāda Mahārāja is Vaiṣṇava. He could understand that "Everything in this material world, even the possession of my father, will be finished. There is no doubt. So what is the use of possessing such thing which will be finished?" Antavanta ime dehā nityasyoktāḥ śarīriṇaḥ (BG 2.18). This is intelligent person decision, that "Everything in this material world—this body, or anything in relativity with this body—will be finished." Kṛṣṇa says and the devotees know it. Therefore they do not want anything of this material possession. And Caitanya Mahāprabhu teaches us to develop that mentality. "Don't want anything, material possession. It is . . . However it may be long duration, but it will be finished. But you are eternal. Nityasyoktāḥ śarīriṇaḥ (BG 2.18). You are the owner of this body. You are eternal."
So we should be searching after eternal happiness, eternal life, eternal engagement. That is success of life. And if we hanker after temporary things, that is not very good intelligence. Therefore bhakti means when one is convinced that "Anything of this material world cannot make me happy." That is . . . That conviction is the beginning of pure devotion. Anyābhilāṣitā-śūnyam (Bhakti-rasāmṛta-sindhu 1.1.11). You have to make zero, everything material. That can be possible as we advance in Kṛṣṇa consciousness.
Then bhaktiḥ pareśānubhavo viraktir anyatra syāt (SB 11.2.42). You haven't got to . . . The jñānīs, yogīs, they try to be detached from this material things by speculation, by knowledge. Brahma satyaṁ jagan mithyā. By speculating, jagan mithyā, "This world is false. Brahman, ātmā, spirit soul is satya, the truth." They do, but it is not possible. Simply by speculating, it is not possible. You have to engage yourself in bhakti.