For the Buddha of the Pali Canon, the goal is liberation: the cessation of suffering, the end of the endless hamster-wheel of dependent origination, of mental formations leading to desire leading to clinging leading to suffering and so on. Nibbana, or nirvana, was not originally conceived as some magical heavenly world, or even a permanent altered state of consciousness. It is usually described, in the early texts, negatively: as a candle being snuffed out.
Jay Michaelson, Evolving Dharma: Meditation, Buddhism, and the Next Generation of Enlightenment
buddhism, spirituality