Interested in Language
How can you make it sound smoother?
--> 'A huge enlightenment came down on him'
You may also look up the words "revelation" and "epiphany" whether they might be what you were looking for.
Informally - 'the penny dropped'.
I would like it to sound a bit more dramatic than 'he became enlightened' and I wouldn't like to bring it down to using 'suddenly' with it. I'll consider it though, thanks.
I'd like to stick to 'enlightenment' but thanks anyway.
I love it! But can't use it (sticking to 'enlightenment')