“Listen, think, understand. Listen, understand, think.”

Implied meaning:

    ‘Listen, think, understand’ means, upon having heard, let the mind and intellect dwell upon and then understand it. Here, as the understanding is through the media of mind and intellect, it is in the context of the Great Illusion (Maya).

    On the other hand, ‘Listen, understand, think’, refers to the embodied soul (jivatma) understanding whatever is heard, experiencing it, and then, thinking about it. This is in the context of Supreme God (Brahman).