Is the Christian hope of Resurrection just an “opiate for the masses”? Or a barbaric reminder of earlier, less scientific times? Or is it something to do with trust?

Is the Christian hope of Resurrection just an “opiate for the masses”? Or a barbaric reminder of earlier, less scientific times? Or is it something to do with trust?
What does the resurrection of Jesus mean? What is it to “believe” in the resurrection? Ultimately, does it, or anything, really matter?