Final answer:
The term describing a state of eternal life and union with God, marked by full happiness and fulfillment, is salvation. In Buddhism, a similar concept is nirvana, which represents ultimate peace and the cessation of all desires through adherence to the Four Noble Truths and the Eightfold Path.
Step-by-step explanation:
The term that means a state of eternal life and union with God in which one experiences full happiness and satisfaction of the deepest human longings is salvation. In Buddhism, this concept is closely related to the state of nirvana, which is a state of ultimate peace found in the extinction of all desire and transcendence of the person's very being. Buddhists attain nirvana by adhering to the Four Noble Truths and following the Eightfold Path, which ultimately leads to the liberation from suffering and the cycle of rebirth, also known as samsara.
Nirvana in Buddhism
Within Buddhist teachings, nirvana is the goal that followers strive to reach through practices such as meditation and right living. It is often described as the ultimate state where one is free from pain, suffering, and the cycle of death and rebirth, achieving a profound peace and the end to all desires.
Salvation in Context
While salvation can be a broad term used across various religions, in the context of Christianity and some other monotheistic faiths, it refers to the deliverance from sin and its consequences, resulting in a relationship with God and entry into heaven after death.