This phrase reflects the deep connection between music and silence, emphasizing how they complement each other to create a complete auditory experience. Music is made up of sounds, but these sounds gain their impact and meaning because they are framed by silence. Silence provides the space in which music can be heard, giving the listener moments to absorb and reflect on what they’ve heard. In this way, silence is an integral part of the music itself.

When we listen to music, the pauses or silences between notes, phrases, or movements can be as powerful as the sounds themselves. These gaps create tension, anticipation, or calmness, adding emotional depth to the music. In other words, silence isn't just an absence of sound; it's a critical element that shapes how we experience music.

On the other hand, silence is never truly empty. In the quiet, our minds can hear echoes of past sounds, or we might start to notice subtle, ambient noises that are usually drowned out by the more dominant sounds of everyday life. In this way, silence is "full of music," as it can inspire or evoke musical thoughts and emotions within us.

In essence, music and silence are interdependent. Music relies on silence to define its structure, and silence, in turn, can be enriched by the memory or expectation of music. Together, they create a dynamic interplay that makes both more meaningful.