Know that all understanding is available through The Holy Spirit. When it is Love you seek to understand, know this also: While it can be understood, Love is the very heart of God, and as with God, you can always grow in understanding. The many facets of God’s Love are reflected in the Love that is part of our design. Of those facets, desire seems to be most enigmatic at least to me.
Desire is like a veracious flame. So perhaps I can use an analogy of a flame lighting an oil lamp. The nature of desire is to consume its obsession. If the wick is too frayed or separated, the flame is spread out and weakened and cannot be maintained. If the wick is not exposed it will never be reached by the fire. If it is too exposed the flame will grow out of control and if it is dry the flame will burn quickly and then go out. Now here is where I have to bend the analogy a bit to fit reality. The oil that feeds the flame of desire is itself desire but mixed with admiration, trust, compassion, and all the other aspects of Love. If that oil is not in each person and complete in its formula, the flame of desire will go out.
The good news is that it is possible to light the lamp again but it is not done by continuing to throw matches at the lamp. It’s done by replenishing the missing elements in the oil. Realize though, that this is easier said than done. One of those ingredients you’ll find is long-suffering. The full recipe of that oil can be found by going to its source, God, through The Word and The Holy Spirit. His is the perfect Love that is never weak, never too overpowering, and is everlasting. Love in its perfect form replenishes as it burns and His Love burns as bright as we can handle. As much as you know God, get to know Him more. As much as you know of Love, grow in knowledge, practice, and understanding.
Rejoice even in heartache, fore if nothing else you are feeling, only in a small way, what God has felt multiplied by every soul from the beginning to the end of time.