Just like that, Jesus is gone. He reappears just long enough to say goodbye. Like a wraith, like a dream, he leaves behind no children, no estate, no writings, no trace of himself except this feeling that his presence was real, that his absence is temporary. Christians have this uncanny feeling that he was just here. He must have just stepped out.
It’s a feeling of mixed joy and grief, of doubt and near certainty. The ascension marks the moment when we pass from Jesus’ time into our own.