This quest doesn't really have a tangible reward to it, but what it does is give you access to gain better rolls on some of the best guns in the game.
A Bright Future:
- Primer: Speak with Saint-14 in the Tower.
- Heart of the Sundial: Defeat Inotam, Oblivion's Tribune in the Sundial.
- Brighten the Core: Infuse the core by collecting 30 Orbs of Light.
- Lantern in the Dark: Insert the Light-infused core into the Tower Obelisk.
- Pharos Link: Report to Osiris.