Everything should be accepted by the symptom, characteristic. Not that anyone will come: "I am a sādhu." No. We must know by the characteristic of sādhu. That has been described. Similarly, incarnation of God, not that anyone will come and say: "I am incarnation of God." That will not be accepted. We have to see the characteristics of God as they are stated in the śāstra, then we can accept somebody as God by uncommon quality.
So apart from God, now our present problem is that we are entangled by the infection of material qualities, rajas-tamo-bhāvāḥ especially. Kāma-lobhādayaś ca ye, ceta etair anāviddhaṁ sthitaṁ sattve prasīdati (SB 1.2.19). We have to conquer over the quality, the infection of quality of rajas-tamaḥ, and then we have to situate ourself in sattva-guṇa. Then we are in the safe position. And if we do not allow to be infected again by the rajo-guṇa and tamo-guṇa—if we keep ourself purely in sattva-guṇa, that is called śuddha-sattva, simply purified sattva-guṇa—then we will be able to understand what is Kṛṣṇa, what is God. So not only we have to acquire the qualities of sattva-guṇa: satyaṁ śamaḥ śaucaḥ ārjavaṁ titikṣā, jñānaṁ vijñānam āstikyaṁ brahma-karma svabhāva-jam . . . (BG 18.42). These are the characteristic of sattva-guṇa: truthful. So much so truthful that, as they are stated by the commentators, that even an enemy asks some secret from you, you can say. Suppose a thief has come, "Now, what you have got in your box?" So if you say, "I have got so many thousands of rupees" or "hundreds," truthfulness should be like that. Even to your enemy it should be disclosed. That is called truthfulness. Satyaṁ śamaḥ damaḥ śaucaḥ, cleanliness. Then controlling the mind, controlling the senses, and simplicity, very simple in behavior, ārjava; titikṣā, tolerance; and full knowledge; vijñānam, practical application of knowledge; āstikyam, full faith in Vedic literature and in God. These are the qualification of sattva-guṇa.
So everything can be attained very nicely and easily simply by this sādhu-saṅga. Sādhu-saṅga (CC Madhya 22.83). Therefore we repeatedly say that we are trying to create some sādhu so that in different parts of the world they will preach Kṛṣṇa consciousness, and people will be able to associate with them, and they will become purified. This is Kṛṣṇa consciousness movement, that sādhu-saṅga. It is very essential. People are suffering on account of being contaminated by the tamo-guṇa and rajo-guṇa, becoming entangled simply by lusty desires always, just like cats and dogs. So they are becoming more and more entangled. Unfortunately, they do not know that there is life after death, but they do not know what kind of life is going to happen next after death. They are blind, andha. Andhā yathāndhair upanīyamānāḥ (SB 7.5.31). The leaders are also blind. They do not know what is the aim of life, where is the future of life. And they are leading them. They are also blind. Especially in this age, the human society is in great danger. They do not care what is next. But there is next life. We get it, information, from Kṛṣṇa: tathā dehāntara-prāptiḥ (BG 2.13). Dehāntara-prāptiḥ there is. How you can deny it? The authority says. And we have got experience also. We are having dehāntara from babyhood to childhood, from childhood to boyhood, from boyhood to youthhood. In this way, we have changed so many bodies, dehāntara. This is called dehāntara. Similarly, after death there will be dehāntara. It is very reasonable, but people do not believe it.