We have seen many big, big sannyāsī, they give up this world as brahma satyaṁ jagan mithyā, false. But after some times, when they cannot actually realize Brahman, they again come to this jagat for humanitarian work, for welfare activities. If jagat is mithyā, then why do they come again to this welfare activities? So jagat, not mithyā, but it is temporary. We do not say mithyā. Vaiṣṇava philosophers, they do not accept jagat as mithyā. Why? If it is emanation from the Absolute Truth, it must be true. It is not mithyā, but we accept it as temporary. We do not accept as permanent.
The permanent jagat is the spiritual world. Paras tasmāt tu bhāvaḥ anyaḥ (BG 8.20). There is another, spiritual world; that is sanātana, that is permanent. This world is not permanent. So even though it is not permanent, it can be utilized for the service of the Lord. Nirbandhe kṛṣṇa-sambandhe yukta-vairāgyam ucyate. That is our philosophy. We don't take the jagat as mithyā; we take it as fact, because it is emanation from the supreme fact. So just like gold earring is also gold—that is not iron—similarly, the, this material world is made of the external energy of Kṛṣṇa.