He is the abode of peace, and the greatest heaven is peace and contentment of mind. Then God gives you a woman to give you peace and contentment of mind. But we do not know how to handle her, therefore we end up with no peace, no contentment of mind. We are in constant hell with our woman because we don't know how to bring out of her what is in her nature for us. And there is not a woman on this earth that doesn't wish to give what nature has put within her to give.
Maintenance means to keep in existence or continuance.
It is a man's job to keep the woman in existence and in continuance. It is his duty to preserve her. It is his duty to keep her in due condition. This is not dealing with money, it's dealing with her head, essence and nature. You always want to deal with her from her navel down.