In this verse, these two pleasantries of the ancient world were compared to “the pleasantness of a friend.” What made interaction with this friend so pleasant was “their heartfelt advice.”
What will really add value to my life is not something that makes the outside look or smell better, but something that will make me better on the inside. “Heartfelt advice” – from the heart, to the heart – can make a real and permanent difference in me.
Admittedly, I may not always appreciate what the heartfelt advice offers, but when that’s what it is (heartfelt) and it comes from a friend – it will be good for me. So, bring it on!