Contrast and difference are characteristics of the universe. The more the gap between two opposites or two different things increases, the clearer the vision becomes for the distant observer who detects this difference. The more you, dear reader, are in a distant viewing position of the contrasts around you with their data, the more you realize that difference is a blessing and contrast is a means to understand the other if you wish.

But what happens when each party only sees the other from their own perspective, even going so far as to consider that any difference from their beliefs, ideas, and convictions is nothing but a means to destroy and eliminate them? This creates an imaginary barrier in which they hide, believing that those who disagree with them come from another world or planet.

The novel talks about the concept of contrast in its comprehensive meaning through its protagonist, an ordinary man who embraced Sufism in a later stage of his life. Music was food for his soul, uttering the truth from his tongue before his mind. He experienced doubt for a while and realized that doubt is a blessing to reach the truth. The blessing that came after that was the blessing of contrast. If the universe had no differences between truth and falsehood, light and darkness, doubt and certainty, and old and new, it would not deserve to be called the universe, whose spirit is manifested in its differences. The novel tells of a specific place, Al-Mosuli Agency, which is a geographical spot to metaphorically reach its truth, and it is in constant contact with the sky. This is how Sheikh Dhaker Raslan described it, saying, "Every place has a spirit that forms according to the conditions it experiences. These walls have never witnessed a dispute, have not heard an argument for hundreds of years, no blood has been shed on this spot, and no sinner has passed through. Even mosques are desecrated by shoe thieves, but here in this agency, God is the best guardian."

The novel's events begin at the inauguration ceremony of the young Sheikh Yusuf as the successor of Sheikh Dhaker Raslan for the Mosul path. The former studies the history of music and digs deep into the scriptures in search of a word that mentions their Mosuli Sheikh. Do not think, dear reader, that there is a conflict or debate between being a Sufi and enjoying music fully, as it is not forbidden. However, for the Sufis who follow the Mosul path, music was not limited to the inauguration ceremony. They said, "Practice is a means of worship. Remember that well every time you hold the oud."

Another central character in the novel is "Zeinat Al-Dinari," the daughter of Dhaker Raslan himself. She represents the axis of modernity, development, and renewal, fighting with her mind and thoughts against all the soldiers of backwardness and superstition. She draws a decisive line between truth and fantasy with her opinions and questions, puts our ideas to the test, and makes us doubt them until we get lost between truth and falsehood. However, the more we use our minds to think neutrally, the more the clouds disappear.

The novel ends with an unusual scene for the events of the story, where Al-Mosuli Agency burns down. It had no guard or protector, for it surrendered to the blazing fire that swept through it. The agency was burned down with its ideas and beliefs, and reason triumphed. If the Mosuli Agency had been built on the necessity of believing in contrast and difference, it would not have burned down.

The novel is a Sufi escape from the spiritual ruin that our world is living in now.