When a rooster crows, only those in the vicinity will hear it; obviously, those far away do not hear its crow. Since the rooster’s crow is not heard by everyone, his influence is not felt by everyone – or not everyone wakes up to the sound of his crow.
This proverb is almost the same as brightened the corner where you are. Actually, your influence may not be felt all over the world. But you can influence your immediate surroundings, your home, your family, your community, your workplace, your classroom, your country, etc.
Supposing you have started a cleanliness campaign. You may not be able to, at a go, get the whole world to subscribe to your campaign. However, you can get your family and your community to subscribe to your campaign and that alone is a success story.
