Channeled 4-second pulse on a 90-second cycle. The healing splits across up to 5 injured allies within 20 yards, and is reduced past 5 targets, so the monk wants bodies near them for the channel. The channel allows the monk to move and weave in utility spells (e.g. Ring of Peace, Tiger's Lust) without dropping the channel, though casting a heal or damage spell does cancel it.

The Conduit of the Celestials hero tree is built around this ability, with Unity Within boosting Celestial buffs to amplified effectiveness when triggered inside the channel. This makes Celestial Conduit a primary throughput window for that build.

Slot Celestial Conduit into the next available 90-second window where extra throughput is needed.

The 20-yard range and the 5-target falloff mean it wants a reasonably grouped raid, or at least 5 injured players near the monk. On a heavily spread phase it still fires, it just pays out on fewer people than it looks like it should.