Absence

This is the life: love and absence. Two plants with the same root. There is love, and there is absence. If you don't prove a feeling of deep absence when you are leaving a person, you have not loved her or him. When you realize that you can feel a remarkable absence also when you leave people who you have known only from a day or two, it means that you are becoming more prone to love: and this is an anticipation of the Paradise.