[Jesus continued,] "In a little while you won't see me anymore. But a little while after that, you will see me again."
Some of the disciples asked each other, "What does he mean when he says, 'In a little while you won't see me, but then you will see me,' and 'I am going to the Father'? And what does he mean by 'a little while'? We don't understand."
Jesus realized they wanted to ask him about it, so he said, "Are you asking yourselves what I meant? I said in a little while you won't see me, but a little while after that you will see me again. I tell you the truth, you will weep and mourn over what is going to happen to me, but the world will rejoice. You will grieve, but your grief will suddenly turn to wonderful joy. It will be like a woman suffering the pains of labor. When her child is born, her anguish gives way to joy because she has brought a new baby into the world. So you have sorrow now, but I will see you again; then you will rejoice, and no one can rob you of that joy.
— John 16:16-22 NLT
Jesus knows that darkness will descend on him and those he loves. He has tried to prepare them. They cannot imagine what the next four days will entail. They will go from excruciating agony at his crucifixion to inexpressible joy  at his resurrection. When we face our dark nights, we need to remember that the Holy Spirit who lives in us is our assurance of the dawn of joy, blessing, and triumph.