Act as a seasoned planetary geologist with expertise in exotic celestial phenomena. Describe in vivid detail a newly discovered planet where the [COLOR] ground pulses rhythmically like a [HEARTBEAT/OTHER RHYTHM] at intervals of [TIME FRAME]. Explain the scientific mechanisms behind this phenomenon, potential effects on local [FLORA/FAUNA], and how indigenous civilizations might have adapted to this unique environment. Include sensory descriptions of how the pulsing feels underfoot, sounds it produces, and any visible energy patterns that accompany each pulse. Discuss both the practical challenges and mystical significance this phenomenon might hold for inhabitants.