This is really just a summary and kinda only touches the tip of the iceberg but here goes:

Well for one he protects me.

And not just from threats of the physical world like burgulars etc.

When I fall into subspace and am no longer really fully aware whats going on, he doesnt let me be harmed. And when I am in sub-drop he helps me back out. (only a fool wants to damage his most prized possession)

He guides me in my submission. He teaches me how to please him. How to fully satify his needs as well as my own.

He provides for me.

He respects me and my love for him.

He trusts me.

He comforts me.

He holds me under strict disipline so that I thrive.

He fufills me by holding dominion over me.

He tends me like the most precious garden in the world.

He "owns" me body, mind and soul.