לַמְנַצֵּ֬חַ ׀ לִבְנֵי־קֹ֬רַח מִזְמֽוֹר׃
For the Leader; a Psalm for the sons of Korah.
Ibn Ezra on Psalms
"To the conductor, listen to this all nations" - this psalm is very important, because it explains the light of the afterlife (lit. World to come) and the undying soul of wisdom.