Pulse [Noun] 1. (Usually singular) The rhythmic throbbing of blood vessels, the heartbeat of the heart. 2a. The undulating movement, oscillation of rays, sound, etc. b. (Music) Rhythm; beat. 3. The dynamic, vibrant expression of vitality, emotion, etc. 4. Trends, intentions of [in] societies, etc. 5. (Electricity) Pulse. In other words, everything that may seem inorganic or lifeless holds the potential to "pulse with life," and this is something achieved by us (or entities like this piece of music).