Love and Uncertainty

In your book The Seven Spiritual Laws of Success you talk about relinquishing attachment to symbols as they are transitory and being grounded in the wisdom of uncertainty. How does this law relate to relationships between partners? It is surely a natural instinct to desire closeness to other individuals, but how do we know whether this is based on insecurity and the needs of the ego or whether it is based on the desires of our true selves. Can we create close loving relationships through being grounded in the wisdom of uncertainty and relinquishing our attachment to the known? In other words is it possible to apply the law of detachment to attracting a rightful partner even though we do not have control over others?