If we have no attachment to anybody, it is impossible to be sad, even if we wish to be

The mind which is attached will have sorrow and grief also; and where there is no attachment, grief cannot be there. In fact, grief comes when the object of attachment is destroyed. There is no other cause for sorrow. Suppose we have an att…achment to somebody: if that person dies we are immersed in sorrow.
Suppose there is a house to which we are attached. If it catches fire we feel grief. There is grief immediately attachment is frustrated or fragmented — wherever it meets with some difficulty, wherever it is broken, wherever it is opposed. And you will witness, when grief comes we will have to create a new attachment to save ourselves from the grief. When grief comes we will have to find a new object for our attachment, to save ourselves from the grief, to get away from it. If a person whom we love dies, we are not able to forget him until we can find a substitute to love. It is difficult to forget the old attachment until we throw it away and replace it by showing our love to the new substitute.
So grief comes when attachment is broken, and to run away from that grief we have to create new objects for our attachment. Thus this vicious circle goes on. Every attachment brings sorrow and every sorrow is suppressed by new objects of attachment. Sickness comes; medicine has to be given, and it causes other types of sickness. Then new medicines are given for the new sickness and those new ones give rise to new sicknesses. Thus the circle goes on.
This is why it is said that one who knows becomes free from grief and attachment. How can ideas of mine and thine come to one who sees himself in all animate and inanimate objects and sees all of them in himself? How is attachment then created? It is created only when we bind ourselves to somebody, and say, “This is mine, the rest are not,” or when we say, “This building is mine, the rest are not mine.”

Source: OSHO

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