Saṃsāra (Devanagari: संसार) is a Pali/Sanskrit word that means "world". It is also the concept of rebirth and "cyclicality of all life, matter, existence", a fundamental belief of most Indian religions. Popularly, it is the cycle of death and rebirth. Saṃsāra is sometimes referred to with terms or phrases such as transmigration, karmic cycle, reincarnation or Punarjanman, and "cycle of aimless drifting, wandering or mundane existence".