SB 3.29.11, SB 3.29.12, SB 3.29.11–12

Basic principle of this unadulterated pure devotional service is love of Godhead. It is stated in this verse: mad-guna-sruti-matrena (m-a-d g-u-n-a s-r-u-t-i m-a-t-r-e-n-a). "Just after hearing about the transcendental quality of the Supreme Personality of Godhead." This quality is called nirguna. The quality of the Supreme Personality of Godhead is uncontaminated by the modes of material nature; therefore, it is attractive to the pure devotee. There is no need of practicing meditation for being attracted in such a way. The pure devotee is already in the transcendental stage, and the affinity between him and the Supreme Personality of Godhead is so natural as it is compared with that the Ganges water is flowing towards the sea. The flow of the Ganges water cannot be stopped by any condition; similarly, a pure devotee's attraction towards the transcendental name, form, pastimes of the Supreme Godhead cannot be stopped by any material condition. The word avicchinna is very important in this connection, "without any interruption." No material condition can stop the flow of devotional service of a pure devotee.

The other…, other word is ahaituki (a-h-a-i-t-u-k-i). Ahaituki means "without any reason." A devotee, a pure devotee does not render loving service to the Personality of Godhead for any cause or for any benefit, material or spiritual. This is the first symptom of unalloyed devotion. Anyabhilasita-sūnyam: there is no desire to fulfill by rendering devotional service. Such devotional service is meant for the purusottama or the Supreme Personality, not for anyone. Sometimes by the pseudodevotees they show devotion to so many other demigods and they think that any form of the demigods are the same as the Supreme Personality of Godhead. Therefore, it is specially mentioned herein that bhakti, devotional service, is meant only for the Supreme Personality of Godhead, Narayana or Visnu or Krsna, not for anyone.

The word avyavahita (a-v-y-a-v-a-h-i-t-a), avyavahita, "without any stoppage." A pure devotee must be engaged in the service of the Lord twenty-four hours without any stoppage. His life is so molded that in every minute and every second he is engaged in some sort of devotional service of the Supreme Personality of Godhead. Another meaning of the word avyavahita is that the interest of the devotee and the interest of the Supreme Personality of Godhead are on the same level. The devotee has no separate interest except to fulfill the transcendental desire of the Supreme Personality of Godhead. Such spontaneous service unto the Supreme Personality of Godhead is transcendental and is never contaminated by the material modes of nature. These are the symptoms of pure devotional service without any contamination of material nature.