mano mayy arpitaṁ sthiram

etavan eva-only so far; loke asmin-in this world; pumsam-of men; nihsreyasa-final perfection of life; udayah-the attainment of; tivrena-intense; bhakti-yogena-by practice of devotional service; manah-mind; mayi-in Me; arpitam-fixed; sthiram-steady.