Samsara is a state of perpetual reincarnation and rebirth that all beings are trapped within, as defined by Hinduism, Jainism and Buddhism. The term itself originates in Sanskrit and Pali and can be translated to mean continuous movement or wandering - which also represents suffering - which can only be lifted with moksha (liberation from suffering in nirvana).
Samsara is at the core of Buddhist philosophy. It describes an endless cycle of rebirth from hells, animals and humans into every possible lifeform imaginable - from hells, animals and human beings alike. Reincarnation depends on one's karma which activates after death with good or bad actions performed in previous lives - commonly referred to as The Wheel of Suffering or Reincarnation by Buddhists.
Visistadvaita Vedanta holds that one can escape samsara through devotional worship known as bhakti, where devotees immerse themselves completely in their personal god or goddess. According to this tradition, release from samsara does not depend on understanding the nature of atman or Brahman; rather it depends on overcoming attachment and remaining detached from pleasures of life - prompting some scholars to question its classification as a "wheel" of life; moreover there remain many mysteries regarding how samsara works and how it can be ended (such as why does someone enter this cycle?).