Without stirring abroad, One can know the whole world; Without looking out of the window One can see the way of heaven. The further one goes The less one knows.
Seal the openings, shut the doors, and until your last day you will not be exhausted. Widen the openings, interfere, and until your last day you will not be safe.
Some have lavish garments, carry sharp swords, and feast on food and drink. They possess more than they can spend. This is called the vanity of robbers. It is certainly not the Way.