Here is the full list of all 11 Himno achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.
Do 2500 dashes.
Do 5000 jumps.
Use 15 dash runes.
Visit 100 districts.
Release 25 Wisps.
Reach level 19.
Reach district 11.
Light 30 torches in one playthrough.
Release your first Wisp.
Explore new terrain above 600 meters.
Falls into the water for the first time.