The Forerunner objects are inherently intelligent.. like an AI. They're giving him his memories because it knows that's what's going to motivate him to find the Halo and stop the Covenant from using it. Giving him the determination to get the job done, instead of just following random orders from people who don't understand what's going on. I think the two artifacts will end up creating a map revealing the location of the rings. The next episode is awesome as well.
The clones she made of the kids all died but why didn’t she try to figure out how to stop that so she could have made entire armies of Spartans from those original kids, Halsey doesn’t seem as smart as she comes off