فَإِذاso whenever ماemphatic particle نَظَرتُI look فيin عُرضِthe midst of الناthe people (first part)
فَإِذا ما نَظَرتُ في عُرضِ النا
سِ(completion of 'people') كَأَنّيas though I أَراهُمI see them فيin الظَلامِthe darkness
سِ كَأَنّي أَراهُم في الظَلامِ
So whenever I look among the people,
it is as though I see them in darkness;
وَكَأَنَّand as though الَّذيthat which أُصيبُI gain عَلىover الأَيّاthe days (first part)
وَكَأَنَّ الَّذي أُصيبُ عَلى الأَيّا
مِ(completion of 'days') شَيءٌsomething أَصَبتُهُI gained it فيin المَنامِa dream
مِ شَيءٌ أَصَبتُهُ في المَنامِ
and whatever I gain as the days go by
is like something I gained in a dream.