mahā-yogeśvara-prāya - just like a great mystic yogī; dekhi' - seeing; svacchande - at his will; maraṇa - dying; bhīṣmera niryāṇa - the passing of Bhīṣma; sabāra ha-ila smaraṇa - everyone remembered.

Seeing the wonderful death of Haridāsa Ṭhākura by his own will, which was just like a great mystic yogī’s, everyone remembered the passing away of Bhīṣma.