Words, phrases, images cascaded swiftly through their minds. Afterwards, though they agreed they'd all experienced something similar, they weren't certain of it.
One thing they did agree on:
the alien spoke to them
Only in your finite universe, where time and space are one, is time linear. Only there is there cause and effect, before and after.
In a dimension without space-time there is no entropy, decay does not exist. Time exists only as moments and there is no previous moment and there is no next moment.
This is difficult for you to comprehend. Do not try. Simply accept.