I snap my fingers and Steven, my wife lapis, garnet, amythest, pearl, rose/pink diamond, white, yellow, peridot, bismuth and Greg here to zavala's office.

Me: before you all ask why I teleported you all here, me, zavala, ikora and cayde need to tell you all about the collapse, etc.

Everyone was quiet.

Me: when the traveler first arrived, it changed everything, humanity entered a golden age, but the traveler's ancient enemy, the darkness, found us, and caused the collapse, the traveler made a choice, it's sacrifice temporarily destroyed the darkness, and gave life to the ghosts, to seek out those who can wield the traveler's light as a weapon, we've destroyed the darkness at its heart, we beat crota, skolas, oryx, siva, then came the red war, the red legion came and put a cage on the traveler, stripping us of our light, we won, and more threats kept coming.

Blue: wow, you all have gone through alot.

Ikora: yes we have blue, we are still fighting to reclaim our worlds.