Sanātana Gosvāmī thus inquired into all phases of devotional service, or Kṛṣṇa consciousness, and Lord Caitanya taught him most confidentially from authoritative scriptures like Śrīmad-Bhāgavatam. The Lord also referred to the Vedic literature known as Hari-vaṁśa, which gives information about the transcendental abode of Kṛṣṇa. This information was disclosed by Indra when he offered his prayers after being defeated upon challenging the potency of Kṛṣṇa. In the Hari-vaṁśa it is stated that although birds and airplanes can fly high in the sky above the earth, they cannot reach the higher planetary systems. The higher planetary systems extend upward from the sun planet, which is situated in the middle of the universe. Above the sun are planetary systems where persons who are elevated by great austerities and penances are situated. The whole material universe is called Devī-dhāma, and above it is Śiva-dhāma, where Lord Śiva and his wife Pārvatī eternally reside. Above that planetary system is the spiritual sky, where innumerable spiritual planets, known as Vaikuṇṭhas, are situated. And above these Vaikuṇṭha planets is Kṛṣṇa's planet, known as Goloka Vṛndāvana. The word goloka means "planet of the cows." Because Kṛṣṇa is very fond of cows, His abode is known as Goloka. Goloka Vṛndāvana is larger than all the material and spiritual planets put together.
(Teachings of Lord Caitanya).

So Narottama dāsa Ṭhākura, representing ourself, he is lamenting, "My dear Lord, I have spoiled my life. I have simply spoiled my life." Why? This life, this human form of life, manuṣya-janama pāiyā, rādhā-kṛṣṇa nā bhajiyā. This human form of life was meant for understanding what is Rādhā-Kṛṣṇa and worship Rādhā-Kṛṣṇa or Lord, His energy, whatever you call. Hare Kṛṣṇa or Rādhā-Kṛṣṇa, Hare Rāma, the same thing, the Lord and His energy. So, "Instead of making contact with Rādhā-Kṛṣṇa, I am simply spoiling my life in sense gratification." So he's lamenting, hari hari biphale janama goṅāinu: "Uselessly I have spoiled my life." Why? What is your lamentation? He says, golokera prema-dhana, hari-nāma-saṅkīrtana. This chanting of Hare Kṛṣṇa, this transcendental vibration is not any material thing. It is imported from the transcendental abode, golokera. Goloka means the transcendental abode of Kṛṣṇa. Golokera prema-dhana. From there, the transcendental abode of Kṛṣṇa... Just like the sunshine, wherefrom it has come? From the sun planet. Everyone knows it. Although you cannot go there, it is far, far beyond your reach, but you can understand that the sunshine is coming from the sun globe. There is no doubt about it. Similarly this vibration, this shining, is coming from Kṛṣṇa, Goloka. Golokera prema-dhana. And prema-dhana means this chanting is in love with Kṛṣṇa. Golokera prema-dhana, hari-nāma-saṅkīrtana, rati nā janmilo kene tāy. "I've no attachment for this." Why should one be attached to this? That is explained in the next line: viṣaya-viṣānale, dibā-niśi hiyā jvale. Hiyā means heart. Our heart is always burning. Why? In touch with this material sense gratificatory process. No sense gratificatory process is giving me satisfaction. I'm trying this way, that way, this way, that way, that way. You see? Just like people are trying sense gratification in so many ways.
(General Lecture).