Because we managed to keep our heart open, despite the pain. Because we realized that the person who left us did not take the sun with them or leave darkness in their place.
In all the languages in the world, there is the same proverb: "What the eyes don't see, the heart doesn't grieve over." Well, I say that there isn't an ounce of truth in it. The further off they are, the closer to the heart are all those feelings that we try to repress and forget.
We can see the Divine in each speck of dust, but that doesn't stop us from wiping it away with a wet sponge. The Divine doesn't disappear; it's transformed into the clean surface.
If one partner gives himself completely, he breaks down the barriers of the other, however strong they may be. Because the act of giving means: "I trust you". The other, who to begin with may feel rather intimidated, wanting to prove things which aren't even under discussion, is unarmed by the spontaneity of such an attitude, and relaxes. At that moment, true sexual energy comes into play.
We are here because we are made by God, we will return to God. So people who think that they are something, they are totally wrong. And this is the most beautiful thing in life, it is that we don't own anything. So, everything is ours in the sense that we have the world to explore and not things to carry, a burden to carry.
Don't think about what you've left behind. If what one finds is made of pure matter, it will never spoil. And one can always come back. If what you had found was only a moment of light, like the explosion of a star, you would find nothing on your return.