So this is the process of getting knowledge, to approach the proper person, guru, and submissively hear from him about transcendental knowledge. Tad viddhi praṇipātena paripraśnena sevayā (BG 4.34). Don't try to receive spiritual knowledge or transcendental knowledge very cheaply. Although it is very easy, there is no difficulty, but the process must be known. Just like any machine—we have got experience—just like sometimes our typewriter machine or this dictaphone does not work. So if we go to the proper person, who knows the work, he immediately tightens one screw or changes something; it works. The process we must know. So if I go to a pān-wala for repairing my machine, that will be not good. He does not know the process. He may know to..., how to make pān, biḍi; but doesn't matter, he does not know how to repair a machine.
Therefore the shastric injunction is, Vedic injunction, that tad-vijñānārthaṁ sa gurum eva abhigacchet (MU 1.2.12). If you want to know transcendental knowledge, tad-vijñāna... Tad-vijñā... It is also vijñāna. Actually, human life is meant for understanding tad-vijñāna. Tad-vijñāna means transcendental knowledge, not material knowledge, bodily. Bodily... Even a medical practitioner, he does not know, he has no knowledge of the spirit soul. He simply studies the mechanical arrangement of the body. The body's a big machine made by nature. It is called yantra. Actually it is a machine. In the Bhagavad-gītā it is said,
- īśvaraḥ sarva-bhūtānāṁ
- hṛd-deśe 'rjuna tiṣṭhati
- bhrāmayan sarva-bhūtāni
- yantrārūḍhāni māyayā
- (BG 18.61)
Yantrārūḍhāni māyayā. This body is machine. The, those who are very much attached to this machine, for them, the yoga system is recommended because... One who is very much in the conception of the body, so they have been taught just to concentrate the mind on some practice, some gymnastic, so that mind may be concentrated and he can focus the mind towards Viṣṇu, Lord Viṣṇu. Real purpose is to understand Viṣṇu, the Supreme. So the yoga system is therefore a mechanical arrangement. But the bhakti system is above the machine, above this mechanical arrangement. That is... Therefore it is called tad-vijñāna. The mechanical understanding is material, and above that, tad-vijñāna.