antarvanibhir apy asya
mudra susthu sudurgama
dhanyasya—of a most fortunate person; ayam—this; navah—new; prema—love of Godhead; yasya—of whom; unmilati—manifests; cetasi—in the heart; antarvanibhih—by persons well versed in sastras; api—even; asya—of him; mudra—symptoms; susthu—exceedingly; sudurgama—difficult to understand.
" 'Even a most learned scholar cannot understand the activities and symptoms of an exalted personality in whose heart love of Godhead has awakened.'
Link to this page: https://prabhupadabooks.com/cc/madhya/23/40