"The Looking Glass" by Avantasia is a song that explores the theme of curiosity and the pursuit of knowledge. The lyrics portray a character named Gabriel who is drawn to the sound and temptation of the unknown. He feels a strong desire to understand what lies beyond what he already knows.

The song introduces the concept of the "Tree of Knowledge" which symbolizes the pursuit of wisdom and understanding. It suggests that the quest for knowledge can lead to both enlightenment and madness. Gabriel is enticed by the idea of looking beyond what is visible, represented by the metaphorical looking glass.

As Gabriel gazes into the looking glass, he is met by his reflection, symbolizing self-discovery. The lyrics emphasize his desire to know more and his persistent hunger for knowledge. However, he acknowledges that there are limits to what he can understand, saying, "I know what I'll never know." This suggests that there are aspects of the world and the human experience that will always remain beyond his grasp.

The song also touches upon the idea that desiring the whole when only fragments are available is a futile endeavor. It compares this to the grandeur of the buildings in Rome, which would be incomplete without each individual stone.

Overall, "The Looking Glass" delves into the complexities of human curiosity and the limits of knowledge. It highlights the eternal quest for wisdom and self-discovery, acknowledging that there will always be aspects of life and existence that remain elusive.