The second injunction of the Buddha – Listen Fully –

means listen attentively

You may have a good motivation for listening to the teaching, but if you are distracted – if you do not direct your mind towhat is being said – then listening is of no use.

Your mind will become like a cup that is turned upside-down; NOTHING can be poured into it.

– Medicine Buddha Teachings by Khenchen Thrangu Rinpoche