After he said this, he was taken up before their very eyes, and a cloud hid him from their sight.
After he had said what?
It was after he had told them they would be laying their life down across the world, enabled to do so by the power of the Spirit, that he left.
You will die, bye. But the Spirit will be with you.
What were they doing?
More than at any other time they were focused on Jesus not distracted in anyway. Then he left.
When did they stop seeing him?
They watched him ascend then the cloud came. The clouds always cover the sun and on this day they also covered the Son.
The point being?
At the point of their surrender He left them.
At the point of their attention on Him He left them.
When the clouds of life cover the Son, will you trust Him?