Bright purple circles on a lighted purple backgroundBright purple circles on a lighted purple background
A lonely man in an abandoned room with a dim lightA lonely man in an abandoned room with a dim light
Boats on the sea surface in the light of the setting sunBoats on the sea surface in the light of the setting sun
The light of the lighthouse illuminates the dark nightThe light of the lighthouse illuminates the dark night
Свет от какого-н. источника. Техническое оборудование, дающее свет. То или иное объяснение, истолкование.