Correcting oneself is correcting the whole world. The sun is simply bright. It does not correct anyone. Because it shines, the whole world is full of light. Transforming yourself is a means of giving light to the whole world.
If we cannot envision the world we would like to live in, we cannot work towards its creation. If we cannot place ourselves in it in our imagination, we will not believe it is possible.
Come behold this world, which is like unto an ornamented royal chariot, wherein fools flounder, but for the wise there is no attachment.
Be content with what you have; rejoice in the way things are. When you realise there is nothing lacking, the whole world belongs to you.
You are the centre of that world. That is the world you live in. Now how will you change the world? By changing yourself.

