History of Closer to the Heart

Closer to the Heart is the final mission of Season of the Wish, set in the Black Garden. Completing it earns this 25-point triumph.

How to complete

Per Destinypedia, the mission is unlocked by finishing the Veiled Threats quest and supports 1-3 players. Objectives: search the Black Garden for its heart, destroy six Vex gateways, defeat the Withdrawn Mind, destroy the Black Heart, and eliminate the Temporal Progeny. Osiris guides the mission.

Notes

I did not verify the Bungie forum thread's contents beyond its title, so any reward beyond the triumph is unconfirmed.