A Guiding Light
Riddle: A light aloft alone in shadow, I light the way for paths you follow. What am I?
Answer: "Lampost" - Reasoning: Often, a street lampost will be a source of light above paths that are often travelled at night, hence it the reference to this lonely light guiding you on paths through the darkness.
Source: https://www.riddles.com/index.php/7438
