So whenever your relationship is not working, whenever it brings out the "madness" in you and in your partner, be glad. What was unconscious is being brought up to the light. It is an opportunity for salvation. Every moment, hold the knowing of that moment, particularly of your inner state. If there is anger, know that there is anger. If there is jealousy, defensiveness, the urge to argue, the need to be right, an inner child demanding love and attention, or emotional pain of any kind—whatever it is, know the reality of that moment and hold the knowing. The relationship then becomes your sadhana, your spiritual practice. If you observe unconscious behavior in your partner, hold it in the loving embrace of your knowing so that you won't react. Unconsciousness ...

— Eckhart Tolle

from The Power of Now: A Guide to Spiritual Enlightenment