Unless marriage is built upon the rock of oneness it cannot stand; "Two Souls with but a single thought, two hearts that beat as one."
The poet understood this, for unless man and wife are living the same thoughts (or living in the same thought world), they must inevitably drift apart.
Thought is a tremendous vibratory force and man is drawn to his thought creations.
For example: A man and woman married and were apparently happy. The man became successful and his tastes improved, but the wife still lived in a limited consciousness.
Whenever the man bought anything he went to the best shops and selected what he needed regardless of price.
Whenever the wife went out she haunted the Five and Ten Cent Stores.
He was living (in thought), on Fifth Avenue and her thought world was on Third Avenue.
Eventually the break and separation came.
We see this so often in the cases of rich and successful men who desert their faithful, hardworking wives later in life.