Destiny is a macroscopic quantum phenomenon, determined by the destiny wave function.

The destiny wave function is a function that describes the state of a macroscopic system in macroscopic quantum mechanics. In classical mechanics, the position and momentum (or velocity) of a particle are used to describe the state of a macroscopic particle. This is the classical way of describing the state of a particle, which highlights the particle nature of the particle. Since macroscopic destiny has the dual nature of wave and particle, the position and momentum of destiny cannot have definite values at the same time (see uncertainty relation), so the classical way of describing the state of destiny is not applicable to the description of the state of destiny. The destiny wave is expressed as the expectation value of the probability wave function at the macroscopic scale.

命运是宏观量子学现象，由命运波函数决定。

命运波函数，是宏观量子力学中描写宏观系统状态的函数。在经典力学中，用质点的位置和动量 （或速度）来描写宏观质点的状态，这是质点状态的经典描述方式，它突出了质点的粒子性。由于宏观命运具有波粒二象性，命运的位置和动量不能同时有确定值（见 测不准关系 ），因而命运状态的经典描述方式不适用于对命运状态的描述，命运波于宏观尺度下表现为对几率波函数的期望值。