Our senses: eyes, ears, nose, tongue, body and mind are always focus on or pay attention to external factors.
We seldom use our senses to look at our inner heart.
How many hours have you spend to be with yourself?
Can you see your face clearly without the help from mirror?
Can you see your friends face clearly?
Can you spot error on your friends? How about yourself?
As you can see the muddy road, you’ll never walk through it.
How about your heart and your mind? You can’t see it, right?
You are unsure whether it’s clean or dirty.
If you don’t purify it, it’ll be more dirty than the muddy road.
Observe your inner heart and mind, purify it and let it to become pure water.
Look inward not outward. Discipline ourself not others.
If a man who has committed many sins, does not repent and purify his heart of evil, retribution will come upon his person as sure as the streams runs into the ocean which becomes ever deeper and wider. If a man who has committed sins, come to the knowledge of it, reforms himself, and practises goodness, the force of retribution will gradually exhaust itself as a disease gradually loses baneful influence when the patient perspires.