This document explores the phenomenon of oscillation through an introduction, definitions, types, applications, and mathematics. Oscillation involves a repetitive back-and-forth motion around an equilibrium point and is seen everywhere from swinging pendulums to vibrating guitar strings. There are different types of oscillation including simple harmonic motion, damped oscillation, and forced oscillation. Oscillation plays important roles in fields like timekeeping, music, electronics, and medical technologies. Its behavior can be analyzed using mathematical concepts such as amplitude, frequency, and period.