If there is no subject matter for talking on the subject of Kṛṣṇa, then it is better not to talk. But we have got very nice engagement. We can talk Hare Kṛṣṇa. If you have no other engagement, then we have got these beads, "Hare Kṛṣṇa, Hare Kṛṣṇa, Kṛṣṇa Kṛṣṇa..." You can day and night, twenty-four hours, go on. This is called mauna. And vijñāna. Vijñāna means perfect knowledge. What is that perfect knowledge? Perfect knowledge means to know Kṛṣṇa. Yasmin vijñāte sarvam evaṁ vijñātaṁ bhavati (Muṇḍaka Upaniṣad 1.3). The Vedic injunction is: "If you can understand the Supreme, then you understand the whole thing, because Supreme is the whole, absolute." Just like if you can understand one, two, three, four, five, six, eight, nine, zero, then you can understand the whole mathematics, because what is mathematics? One, two, three, four, three, four, one, two, just like that. That's all. The same nine figures, that's all. Similarly, the Vedas says, yasmin vijñāte sarvam evaṁ vijñātaṁ bhavati. If you simply try to understand the Supreme Absolute Truth, that is the purpose of Vedas. And it is confirmed in the Bhagavad-gītā also, vedaiś ca sarvair aham eva vedyam (BG 15.15). What is the use of studying Vedas? What is the use of studying this Bhāgavata or...? To understand Kṛṣṇa. That's all.
So here it is stated that maunaṁ vijñānaṁ santoṣa. Santoṣa. This is the result. If you are perfect in knowledge of Kṛṣṇa, then you are satisfied. Satisfied. Yasmin sthito guruṇāpi duḥkhena na vicālyate (Bg. 6.20-23). In the Bhagavad-gītā it is said, yaṁ labdhvā cāparaṁ lābhaṁ manyate nādhikaṁ tataḥ: "If one attains to the perfection of Kṛṣṇa consciousness, then he has no more to understand anything." Yaṁ labdhvā cāparam. He does not want any more profit in any way. He thinks that "I am completely..." Yasmin sthite, and the test is that if one is situated in Kṛṣṇa consciousness, then guruṇāpi duḥkhena... Because the world, this material world, we are always in trouble. So a person situated in Kṛṣṇa consciousness is not troubled at all, even if he is put into very trying circumstances. Guruṇāpi duḥkhena. This is the test. That is called santoṣa, and satya, truthfulness, āstikya. Āstikya means belief, faith, faith in scripture, faith in God. That is called faith. This is faith. And when that faith is very much concentrated, then one can understand Kṛṣṇa. Viśvāsa śabde sudṛdha-niścaya, kṛṣṇe bhakti kaile sarva-karma kṛta haya. This is called strong faith or firm faith. What is that firm faith? When one is convinced that "If I am Kṛṣṇa conscious, then all my duties will be perfect." And that is the fact. Saṁsiddhir hari-toṣaṇam (SB 1.2.13). As I have several times spoken in this meeting, that "Let everyone be engaged to his specific duty. It doesn't matter what it is. But if you want to see that whether your function is perfected, then you have to test it, whether by your activities Kṛṣṇa is satisfied." Saṁsiddhir hari-toṣaṇam. Svanuṣṭhitasya dharmasya saṁsiddhir hari-toṣaṇam (SB 1.2.13). So this santoṣa. If you think that Kṛṣṇa is satisfied... How you can know Kṛṣṇa is satisfied? Yasya prasādād bhagavat-prasādaḥ: ** "If you can satisfy your spiritual master, then you should know that Kṛṣṇa is satisfied." Yasya prasādād bhagavat-prasādaḥ **. So if you are fortunate enough to have a bona fide spiritual master and if you can satisfy him, then you know that you have satisfied Kṛṣṇa. This is the process.