Jñānī, what is that jñānī? Bahūnāṁ janmanām ante jñānavān māṁ prapadyate (BG 7.19). That is jñāna. If you do not understand Kṛṣṇa, if you do not surrender to Kṛṣṇa, what is the value of your so-called knowledge? Śrama eva hi kevalam (SB 1.2.8). It is simply waste of time. If you do not understand Kṛṣṇa you are studying Vedic literature, you are very good student of Vedas. That's all right. Have you understood Kṛṣṇa? "No sir." Then it is useless. Useless waste of time. Because it is said: vedaiś ca sarvair aham eva vedyaḥ (BG 15.15). If you actually understand Vedas, then you must understand Kṛṣṇa. Jñānī, I am jñānī. What kind of jñānī? Simply a speculation? Waste your time? This is not this, this is not this, this is not this? Neti neti vicāra. This is simply called waste of... Kevala-bodha-labdhaye.
That is confirmed in the Śrīmad-Bhāgavatam. Bhaktim udasya te vibho kliśyanti ye kevala-bodha-labdhaye. Kevala-bodha-labdhaye, simply to understand. And you can take any insignificant thing, and if you want to speculate upon it, you can write volumes of books, but what is the use of such knowledge? Simply waste of time.
But if by knowledge, you come to the point of bhakti, how to surrender to Kṛṣṇa, then your knowledge is perfect. Therefore Kṛṣṇa says that this knowledge, to surrender unto Me, how to surrender to Kṛṣṇa, comes after many many births. Bahūnāṁ janmanām ante (BG 7.19). We are taking birth one after another, one after another, one after another. So in this way, not ordinary person. Ordinary persons, if they have no knowledge, then their next birth may be cats, dogs, trees, or anything else. Those who are in knowledge, ūrdhvaṁ gacchanti sattva-sthāḥ. Knowledge means those who are situated in the quality of goodness, prakāśa, everything is clearly understood. That is knowledge.
So they, persons who are actually in knowledge, they are promoted to the higher planetary system. Ūrdhvaṁ gacchanti sattva-sthā madhye tiṣṭhanti rājasāḥ (BG 14.18). If you have no knowledge, simply you are trying to enjoy the senses, as in this material world, everyone is busy how to enjoy senses, then you remain here. Madhye tiṣṭhanti rājasāḥ. And if you are in darkness, neither you have knowledge, neither you have the capacity to enjoy this world, simply lazy and sleepy. That is the darkness. Then you become animal, trees, and other lower classes of species of life. These three things are going on.
Therefore, this knowledge means that to understand the Absolute Truth. That process is described. Jñānam. Amānitvam adambhitvaṁ kṣāntir ārjavam, ācāryopāsanam, bhakti. Māṁ ca yo 'vyabhicāreṇa bhakti-yogena sevate (BG 14.26). Adhyātma-jñānārtha-darśanam. Everything is described. Kṛṣṇa said therefore that iti kṣetraṁ tathā jñānam. "I have described about this body and I have described about the knowledge and the object of knowledge. Everything I have described." But who will understand? That is also described here: mad-bhakta etad vijñāya (BG 13.19). So that is the qualification. Unless one is devotee, one cannot.