"When you look at a cloud, you think of the cloud as being. Later on when the cloud becomes the rain, you don´t see the cloud anymore and you say that the cloud is not there, and you describe the cloud as non-being. But if you look deeply you can see the cloud in the rain, and that is why it is impossible for a cloud to die. A cloud can become rain, snow or ice, but a cloud cannot become nothing, and that is why the notion of death cannot be applied to reality."
- Thich Nhat Hanh
This one of many principles where Buddhism and modern science coincide, the eneryprinciple.
Nothing disapppears, only transforms.
May the force be with you