“Praise and blame appear to be coming from without; but the basic reason is within our own selves.”
When a person hurls an abuse at me, it is not the foul words that hurt the fact that these words are hurled at me is what hurts. Similarly, when I am praised the praise in itself is not what matters but the fact that I am praised.
Praise is food for our ego. So also is abuse, in a negative way.