Significance:

Chief  dancer

Upon hearing this , Sri Caitanya Mahaprabhu immediately began great congregational chanting in the courtyard. Vakreshvara Pandita was the chief dancer. ----- C C Ant- Volume-4—11—48
Training
One should learn to dance before the Deity. ---Srila Rupa Goswami- Nectar of Devotion page 54.

Full of dancing  and  singing

Lord Chaitanya’s movement of Krishna consciousness is full of dancing and singing about the pastimes of lord Krishna . ---CC Adi – Ch- 2 – text 2- purport

Practically  based  upon music and  dancing

Our Krishna consciousness movement is practically based upon music and dancing.
---Letter to : Mr Levine , 25 January , 1969.

All should participate

This dancing is not a “spectator sport”. Devotee should not simply stand and watch; all should participate. ---- SP letter to Palika – 13 nov 1975.

Actual meaning

People generally cannot understand the actual meaning of chanting and dancing . Describing the Goswamis ,Sri Srinivasa Acharya stated ,[1] ” Krsnot kirtana- jnaana nartana parau” not only did [2] Lord Chaitanya Mahaprabhu and his Associates demonstrate this chanting and dancing . [3] But the six Goswamis also followed in the next generation.[4] The present Krishna consciousness movement follows the same principle, and therefore simply by chanting and dancing we have received good responses all over the world. It is to be understood, however, that this chanting and dancing do not belong to this material world. They are actually transcendental activities, [5] for the more one engages in chanting and dancing, the more he can taste the nectar of transcendental love of Godhead. ----CC-Adi-Ch7 Text 22 purport.

Fifty Percent of our income

Lord chaitanya maha prabhu has taught the lesson for preaching the transcendental message through singing and dancing and refreshment. As such 50% of our income may be spent for this purpose. In this fallen age of quarrel and dissension, if only the leading and wealthy persons of society agree to spend fifty percent of their income in the service of the Lord, as it is taught by Lord Caitanya mahaprabhu, there is absolute certainly of converting this hell of pandemonium to the transcendental abode of the Lord. No one will disagree to partake in a function where good singing, dancing and refreshment are administered. Everyone will attend such a function, and everyone is sure to feel individually the transcendental presence of Lord. This alone will help the attendant associate with the Lord and there by purify himself in spiritual realization. -----Srila Prabhupada in SB 1-5-36 purport

Continue dancing

My dear child ,continue dancing , chanting and performing sankirtan in association with devotees. Furthermore , go out and preach the value of chanting Krishna-nama ,for by this process you will be able to deliver all fallen souls.-----CC-Adi 7—92. --H H Gopala Krishna Goswami Maharaj Queted  in his book named ‘ Krishna the source of happiness ‘ .

Ecstatic dancing

Sometimes all of cowherd friend of Krishna ; along with Balarama , danced together in some ceremony. At these times the garlands on their necks would move, and the boys would begin to perspire. Their whole bodies became wet from their ecstatic dancing . This is an instance of fatigue [ tiredness ] caused by dancing .---------Nectar of Devotion –page 237

Immediately began to dance

While watching the rasa dance performed by Lord Krishna and the gopis . Lord Siva behold the beautifull face of Krishna and immediately began to dance and beat upon his small dindima drum . While Lord Siva was dancing in ecstasy ; his eldest son , Ganesa , joined Him . .—Nectar of devotion-Page 219

Spiritual world every step is a dance

“ In the Spiritual world , every word is a song , and every step is a dance. Music pervades the spiritual world. {Brahma samhita-5.56} And God`s devotees in the here and now fill their lives with devotional song and dance to prepare to enter the music-filled realm of Krishna`s pastimes. “—H G Satyaraja dasa-BTG sep/oct 2011.

 
Expressing  ecstatic  love  for  krishna


The bodily symptoms manifested by a devotee in expressing ecstatic love for Krishna are called “ anubhaava “ . Practical examples of “ anubhaava “ are as follows : 1 dancing , 2 rolling on the ground , 3 Singing very loudly , 4 Stretching the body --------------. Nectar of devotion—page 219.