Holding priority, activate Myojin of Cryptic Dreams by removing an indestructible counter from it, copying the Arboreal Grazer spell three times.
Resolve the first Arboreal Grazer copy.
The Arboreal Grazer token enters the battlefield, putting Dimir Aqueduct from your hand onto the battlefield.
Dimir Aqueduct enters the battlefield, triggering itself and Evolution Sage.
Resolve the Dimir Aqueduct trigger, returning it from the battlefield to your hand.
Resolve the Evolution Sage trigger, putting an indestructible counter on Myojin of Cryptic Dreams.
Repeat from step 3 two additional times.
Repeat from step 2.
This clever loop begins by casting Arboreal Grazer, which you immediately intercept with Myojin of Cryptic Dreams by stripping away its indestructible counter to spawn three token copies of the creature. Each resolving copy triggers its own entry ability to drop Dimir Aqueduct straight from your hand, which in turn bounces itself right back home and wakes up Evolution Sage's landfall ability to proliferate. That proliferation adds a fresh indestructible counter back onto Myojin of Cryptic Dreams, completely restocking its fuel so you can endlessly repeat the entire spell-copying cycle.