Because of the lyrical content, and the title of the song, it is assumed to be based on the subject of lucid dreaming. During the middle eight, a heavily vocoded voice even explains a method for this: "Visualize your dream. Record it in the present tense. Put it into a permanent form. If you persist in your efforts, you can achieve dream control."
The song was recorded with sweeping orchestrations. Often the orchestra is not relegated to the background but instead is very prominent such as during the second half of the instrumental section (timestamp 3:16 - 3:51).
At the end of the song (5:26), a cello or double bass plays the theme from the traditional Brahms' Lullaby - the typical English translation words being "Lullaby, and good night, go to sleep little baby".
"Silent Lucidity" is ranked #21 on VH1's list of Greatest Power Ballads.