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Cleanliness is a good habit and very useful for all of us. When we keep ourselves clean physically we are not allowing any bad insects or diseases or germs to grow. We are not allowing bad things to flourish. Our physique stays healthy. We will be able to think of good thoughts.

When we keep the surroundings clean, we are not allowing the demon-like germs, insects and diseases to spread around the world and cause damage to neighbouring people. We are directly or indirectly helping others.  By keeping ourselves and our surroundings clean, we are also teaching good habits to those who do not know about them.

When we see clean things and pure things around, we do not get bad ideas. We feel happy in heart and mind and we will be inclined to help others.

Cleanliness is perhaps not Godliness as we are not helping others like God does. But it is next to being Godly, as we are helping others to be in good health and to be good.
Children and saints (sages) are said to be Gods. Because they keep their minds clean. They do not pollute the environment. They obey the laws of nature and its cleanliness. Being clean is next possible thing to being a God.

So cleanliness is next to Godliness.

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