Where do people go when they die? Death mysteries!
You call it death. But it is God who leaves the body. His vibration stops in the body. Unless the mind is fully satisfied it will continue to come into this world. People who were together come together again.
When a person is born. One day he must leave the body. Only the body changes and transforms while the soul exists. The elements of the body transform and change. The combination of hydrogen and oxygen form water, again under certain conditions oxygen and hydrogen separate and go to their former conditions.
If we say vanish it is not correct. The word transformation or change is more correct. The mystery is the attachment for the body. We feel nothing for oxygen or hydrogen so we feel nothing about their transformation or change. We feel sorry for the death of a parent or whoever it may be because of an attachment. Death is nothing but a change or transformation.
In you with the infinite within , lie the spiritual or divine energy. When this energy cease to exist, it is death. It is like electricity. Though it can't be seen, it can be only felt. When the mind can resort to another body, it blossoms forth again.
Life is eternal. What you call death is a phase and is concerned only with the body. The body consists of matters which dissolve in time to their original form. But the self has no dissolution. Try to understand the origin. If you catch hold of the root, then you will understand the branches.