"Systolic" was conceived in the aftermath of K.A.L.I.L.'s experience with a stroke. During his hospitalization, he meticulously captured the rhythmic cadence of his own heartbeat during a medical examination, intending to incorporate this unique audio into a potential musical composition. Endeavoring to articulate the myriad emotions he grappled with during the challenging days when half of his body was nearly paralyzed, the song came to fruition.

The composition intricately weaves together the tumultuous thoughts that permeated K.A.L.I.L.'s mind with moments of solace. The distinctive presence of his recorded heartbeats permeates the entire track, rendering it a profoundly special and vibrant narrative of this pivotal moment in his life. Augmented by melodies that poignantly convey elements of fear, love, and self-awareness throughout the ordeal, the rolling bass line sustains an energetic undercurrent, laying the groundwork for a formidable and intense drop that serves as a visceral impact.