God realization can be possible. How? If you engage your tongue in the service of the Lord. It is very wonderful. People may say, "How is that? The tongue has to be engaged in the service of the Lord?" Yes, that is the sastric injunction. Sevonmukhe hi jihvādau svayam eva sphuraty adaḥ. If you simply engage your tongue in the service of Kṛṣṇa, then Kṛṣṇa will appear to you, svayam eva sphuraty adaḥ. He will personally appear before you. And what is that? You can utilize your tongue simply chanting Hare Kṛṣṇa and satisfy the tongue by taking prasādam. Finished. Very simple and very easy. By simply controlling your tongue, you can control all other senses. You can control belly, you can control the genital, you can control everything. Therefore, here is recommendation, "Please do not take this, do not take this. Don't take animal foodstuff. Simply take Kṛṣṇa prasādam. Don't drink, don't smoke..." There are so many don'ts, and so many do's also.
So therefore we have to practice this Kṛṣṇa consciousness method. Here it is said that kāmasya nendriya-prītir jīveta yāvatā (SB 1.2.10). Try to live decently by taking kṛṣṇa-prasāda and chanting Hare Kṛṣṇa mantra. Jīveta: in this way you can live hundreds of years. That is recommended in the Īśopaniṣad, īśāvāsyam idaṁ sarvam (ISO 1). So jīveta yāvatā, jīvasya tattva-jijñāsā nārtho yaś ceha karmabhiḥ. And why shall you live at all? What is the use of living? The trees are also living for ten thousands of years. What is the meaning of that living? Similarly you if live for a hundred years or two hundred years. What is the meaning of your living? Of course, living in this material world is not very comfortable. Every one of us will know it. Padaṁ padaṁ yad vipadām (SB 10.14.58). Those who are living in Bombay city, they know it very well. When you pass through the road in taxi-cab or motorcar, so much congested, and at any moment there may be some danger, padaṁ padaṁ yad vipadām. In America also, the cars are running in seventy-mile speed, and if one car collides with another, immediately four, five cars-disaster. So actually you are living in such a condition. Pādaṁ padaṁ yad vipadām. Every moment there is danger. It is not very peaceful living at the present moment. We are running, we are flying in the sky, we are... We do not say that this should be stopped, neither it can be stopped, but you do everything in Kṛṣṇa consciousness so that even danger takes place, ante nārāyaṇa-smṛtiḥ (SB 2.1.6), you can at least remember Kṛṣṇa at the time of death. Then your life is successful. Yaṁ yaṁ vāpi smaran loke tyajaty ante kalevaram (BG 8.6), Kṛṣṇa says. Yaṁ yaṁ vāpi. At the time of death our remembrance to a certain thing gives me next body. If I think like a dog, then I become next life a dog, and if I think like a god, then I, next life I become god. That is the test at the time of death.
So unless you practice, how you can remember Kṛṣṇa at the time of death?