“Vyāsadeva, the supreme authority on Vedic literature, composed the verse beginning ‘nāyaṁ sukhāpo bhagavān’ because no one can enter into the rāsa-līlā dance in any body other than that of a gopī.”
“[Lord Kṛṣṇa said:] ‘Those who worship the demigods will take birth among the demigods; those who worship the ancestors go the ancestors; those who worship ghosts and spirits will take birth among such beings; and those who worship Me will live with Me.’ “
In the material world, every conditioned soul changes his material body again and again, but when the spirit soul is purified of all material coverings, there is no longer a chance of his accepting a material body. Such a soul then remains in his original, spiritual identity, a state that is possible to achieve only by understanding Kṛṣṇa in truth through the practice of Kṛṣṇa consciousness. As Kṛṣṇa says in the Bhagavad-gītā (4.9): “One who knows the transcendental nature of My appearance and activities does not, upon leaving the body, take his birth again in this material world, but attains My eternal abode, O Arjuna.”
Only when one regains his original spiritual body can he enter into the spiritual kingdom. As far as the rāsa-līlā pastimes of the Lord are concerned, it is futile for one who is within the material world to attempt to imitate the Lord’s dances.. One has to attain a spiritual body like that of a gopī to enter into the pastimes of the rāsa-līlā. In the nāyaṁ sukhāpo verse, the devotees are referred to as bhaktimat, that is, fully engaged in devotional service and devoid of material contamination. One cannot enter into Kṛṣṇa’s rāsa-līlā dance simply by artificially imitating it or artificially thinking oneself a sakhī and dressing up like one. Kṛṣṇa’s rāsa-līlā dance is completely spiritual. It has nothing to do with material contamination; therefore no one can enter into this pastime by artificial, material means. That is the instruction of the nāyaṁ sukhāpo verse, and it must be strictly understood.
Ref>>Srila Prabhupada Vani.