cast (some) light upon (something)

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cast (some) light upon (something)

To reveal information or details about something; to clarify or help people understand something. (A more formal version of "cast (some) light on something.") We've hired a private investigator to help cast light upon the clandestine dealings of the baron. These documents we've uncovered cast some light upon how the late author's final book was meant to end.
See also: cast, light, upon
References in classic literature ?
I hope your visit has cast some light upon those occurrences which have puzzled us?