What a wonderful way to explain it.

A sick man turned to his doctor,
as he was preparing to leave the examination room and said,
'Doctor, I am afraid to die
Tell me what lies on the other side.'

Very quietly, the doctor said, 'I don't know.'

'You don't know?
You, a Christian man, do not know what is on the other side?'

The doctor was holding the handle of the door;
on the other side came a sound of scratching and whining,
and as he opened the door,
a dog sprang into the room
and leaped on him with an eager show of gladness.

Turning to the patient, the doctor said,
'Did you notice my dog?
He's never been in this room before.
He didn't know what was inside.
He knew nothing except that his master was here,
and when the door opened, he sprang in without fear.
I know little of what is on the other side of ,
but I do know one thing....
I know my Master is there and that is enough.