The process is one should begin this Kṛṣṇa consciousness under the mercy of Lord Caitanya. Śrī Caitanya Mahāprabhu is Kṛṣṇa Himself, and He is teaching people how to become Kṛṣṇa conscious. Lord Kṛṣṇa, He (break) personally spoke about Himself in the Bhagavad-gītā, but people who are not very intelligent, who are described in the Bhagavad-gītā as mūḍha—mūḍha means rascal—and duṣkṛtina, and miscreant—and narādhama (break) narādhama means lowest of the mankind—such persons cannot understand Kṛṣṇa. But still, Kṛṣṇa was so merciful that in order to claim all these people, means the lowest of the mankind, miscreant, and fools and rascals, rejected, so He came in the form of Lord Caitanya to reclaim them.
So God is so merciful that even some persons cannot understand Him . . . first thing is people cannot understand actually what is God, but God Himself comes to explain Himself. Still, they commit mistake. Therefore Kṛṣṇa comes as a devotee to teach us about Kṛṣṇa consciousness. So we have to follow the footprints of Lord Caitanya.
And Narottama dāsa Ṭhākura teaches that, "First of all, try to chant the name of Gaurasundara."
śrī-kṛṣṇa-caitanya prabhu-nityānanda śrī-advaita gadādhara śrīvāsadi-gaura-bhakta-vṛnda In this way, when we are a little bit attached with Gaurasundara, Lord Caitanya, then we automatically feel transcendental emotion. And that emotional stage is exhibited by shivering in the body. We should not, however, imitate such shivering to show to the public that "I have become a great devotee," but we should execute devotional service nicely and faithfully; then that stage will come automatically, shivering.
As soon as one will chant the name of Śrī Kṛṣṇa Caitanya, there will be shivering. This is the first symptom that one is getting advanced in the perfectional stage of Kṛṣṇa consciousness. So Narottama dāsa Ṭhākura says, gaurāṅga bolite habe pulaka śarīre. He's expecting. Although he was a great ācārya, still, he was expecting, "When that stage will come?"