When did any of us Guardians die? Good question. I think Bungie wants us to answer that on our own. Part of the make your own story thing. So let me ask you this. What great battle of the past did you die in? What courageous deeds did you preform? They must be very noble and brave considering a ghost that it was worth bringing you back from the dust. Forged in light to shine in the plethora of darkness.