lakṣaṇam - the symptom; bhakti-yogasya - of devotional service; nirguṇasya - beyond the three modes of nature; hi - certainly; udāhṛtam - is cited; ahaitukī - causeless; avyavahitā - uninterrupted; yā - which; bhaktiḥ - devotional service; puruṣottame - to the Supreme Personality of Godhead.

“These are the characteristics of transcendental loving service to Puruṣottama, the Supreme Personality of Godhead: it is causeless, and it cannot be obstructed in any way.