In the context of human understanding, the concept of "eternal" often refers to a being or entity that transcends time and is not subject to the limitations of a beginning or an end. In various religious and philosophical traditions, the term "eternal" is used to describe the nature of a supreme being, such as God or deities, who are believed to exist outside the boundaries of time.
The idea of eternal existence is a complex philosophical and theological concept that has been a subject of contemplation and debate throughout human history. It is often associated with notions of immortality, infinity, and divine nature. Different belief systems have their interpretations and understandings of what it means to be eternal.
Ultimately, discussions about the eternal nature of any being, including the concept of God, are matters of belief, faith, and philosophical speculation, and they lie beyond the realm of scientific investigation.