Sri Chaitanyadeva’s Philosophy In Brief?

We find Sri Chaitanyadeva’s philosophy summarized in one ancient verse:

ārādhyo bhagavān vrajeśa-tanayas tad-dhāma\vṛndāvanaṁ
ramyā kācid upāsana vraja-vadhū-vargeṇā yā kalpitā
śrīmad-bhāgavataṁ pramāṇam amalaṁ premā pum-artho mahān
śrī-caitanya-mahāprabhor matam idaṁ tatrādarāḥ naḥ paraḥ

The Supreme Personality of Godhead, the son of Nanda Maharaja, is to be worshiped along with His transcendental abode, Vrindavana. The most pleasing form of worship for the Lord is that which was performed by the gopis of Vrindavana. Śrīmad-Bhāgavatam is the spotless authority on everything, and pure love of God is the ultimate goal of life for all men. These statements, for which we have the highest regard, are the opinion of Sri Chaitanya Mahaprabhu. (Caitanya-mañjuṣa, a commentary on Śrīmad Bhāgavatam)

Krishna, the son of Nanda, is the complete manifestation of the Supreme Personality of Godhead. Lord Krishna manifests Himself in three features before His devotees according to their respective qualifications. All of these features are complete. They are not partial or indirect manifestations of Krishna the way His manifestations as Paramātma and Brahman are partial. These three features are complete, more complete, and most complete and are situated in Dvaraka, Mathura, and Vrindavana respectively. In Dvaraka Krishna’s manifestation is complete, in Mathura, He is more complete, and in Vraja, He is most complete. We live on earth, which is situated within the fourteen planetary systems. These fourteen planetary systems consist of seven upper planets, beginning from earth, and seven planets below the earth. Among the seven upper planets the first three are Bhū, Bhūva, and Svaḥ. These are the residence of the pious, ambitious materialists. The rest, beginning with Mahar, Jana, Tapa, and Satya are the destination of those who practice renunciation. Among them those brahmacāris who live at the gurukula for a fixed period of time and then return home after offering dakṣiṇā to their guru, attain the planet called Maharloka. Those brahmacārīs who remain in their guru’s āśrama for their entire lives and who practice strict celibacy attain Janaloka. The destination of the vānaprasthas is Tapaloka, and sannyāsīs go to Satyaloka. But devotees who have no desire either to enjoy in the material world or to merge into Brahman attain the most rare Vaikunthaloka.

Above Vaikuntha is Dvaraka, above Dvarka is Mathura, and above Mathura is GolokaVrindavana. Those spiritual abodes, which are eternally present in the spiritual sky, are also manifest in this world. Whatever is absent in the spiritual world cannot appear in this one. As lotus flowers grow in the water but are not touched by the water, so Vrindavana-dhama is in this world but untouched by matter. Those whose hearts are not inclined to serve the Lord cannot realize the transcendental nature of the Lord’s abode as it appears in this world.

Holy places like Ayodhya, Dvaraka, and Puri are particular provinces of Vaikuntha. The happiness one feels in Ayodhya is superior to the happiness one feels in Vaikuntha; the happiness one feels in Dvaraka is superior to the happiness one feels in Ayodhya; and the happiness experienced by the residents of GolokaVrindavana is the crest jewel of all happiness.

The reason the happiness felt in one dhāma is superior to the happiness felt in another is based on the intensity of the rasas expressed in the particular dhāmas. The distress the devotees feel in Goloka dances on the head of all happiness. Distress in the spiritual world nourishes supreme happiness. Sri Chaitanyadeva established the  supremacy of serving the Lord of Vrindavana or Gokula. Krishna is the fountainhead of all the Vishnu incarnations; He is the son of Nanda and the beloved child of Yasoda. He is also the beloved Lord of Radha. This Supreme Personality of Godhead Krishna alone is the eternally worshipable Lord of the Gaudiyas, the followers of Sri Rapa like ourselves. Sri Chaitanyadeva has instructed everyone to worship Krishna, the Lord of Gokula.

— Adapted and Published by Īśvaradāsa, Translated from Bengali byBhumipatidāsa, Edited by Kaiśorī devī dāsī, Amṛta Vāṇī: Nectar of Instructions of Immoratality His Divine Grace Bhaktisiddhānta Sarasvatī Ṭhākura Prabhupāda, Compiled by Śrīpāda Bhakti Mayukha Bhāgavat Mahāraja.