pṛthāpy anuśrutya dhanañjayoditaṁ
nāśaṁ yadūnāṁ bhagavad-gatiṁ ca tām
ekānta-bhaktyā bhagavaty adhokṣaje
niveśitātmopararāma saṁsṛteḥ
This describes her method of disappearing. Samsrteh means “from moving clearly, from her appearance for pastimes in this world.” She suddenly disappeared (upararama). Or the moment she heard the news, she showed a condition of an aged person (inactive) because of the separation from the Lord.