Control your inner thoughts & emotions; Seek forgiveness from Allah; Avoid speaking & acting on negative impulses; Strive to keep your heart pure & clean from evil promptings.

This hadith is about the mercy of Allah, which is so great that He will forgive us even for our inner thoughts and feelings, as long as we don't speak or act upon them. It teaches us to be mindful of our thoughts and feelings, because if we do not control them, they can lead us to sin. We should strive to keep our hearts pure by avoiding negative thoughts and emotions that could lead us astray. Additionally, this hadith reminds us that Allah is always merciful towards His servants; He knows what lies in our hearts even when we don't say it out loud or act on it. Therefore, we should always seek His forgiveness whenever we feel like we have wronged Him in any way.