Can you explain the premise of 'Judgment Day' and its connection to the Eternals?

'Judgment Day' saw the Eternals, tasked with protecting Earth, receiving a directive from the Celestial Arishem to judge humanity's worthiness. This led to a conflict between the Eternals, the X-Men, and the Avengers, as they debated the fate of humankind and the implications of the Celestials' judgment. The event explored themes of free will, destiny, and the responsibility of cosmic beings.