Talk:Saya's Vigil/@comment-2604:6000:A24C:5600:181:2614:F023:B73-20171015152632/@comment-17703786-20171019022450

If you read the lore that comes with the Shard Fragments, the Lotus ordered all of the Tenno to retreat, and Gara only stayed behind because she couldn't leave the Unum.

Also, the Teralysts are technically the remains of the Sentient that Gara fought in the war.