Civilization advances by extending the number of important operations which we can perform without thinking of them.

We receive His peace when we ask Him for it. We keep His peace by extending it to others. Those are the keys and there are no others.

Human intelligence is a reflection of the intelligence that produces everything. In knowing we are simply extending the intelligence that comes to and constitutes us. We mimic the mind of God so to speak. Or better we continue and extend it.

And time itself? Time was a never-ending medium that stretched into the future and the past - except there was no future and no past but an infinite number of brackets extending either way each bracket enclosing its single phase of the Universe.

After about the first Millennium Italy was the cradle of Romanesque architecture which spread throughout Europe much of it extending the structural daring with minimal visual elaboration.

In my experience if you have to keep the lavatory door shut by extending your left leg it's modern architecture.