mad-bhaktesv abhidhasyati
yah-anyone; idam-this; paramam-most; guhyam-confidential; mat-Mine; bhaktesu-amongst devotees of; abhidhasyati-explains; bhaktim-devotional service; mayi-unto Me; param-transcendental; krtva-having done; mam-unto Me; eva-certainly; esyati-comes; asamsayah-without doubt.