Here paaraak means mercury. This sentence means
kuch chan pehle jo parvat pradesh shanti ka prateek tha , jahan par har cheez shant aur manmohik thi, wahan par ab zoron se barsaat hone ke karan aisa lag raha tha ki jheel mein se "dhua" aa raha hai. Is dhue mein ye vishaal parvat chup jata hai aur sirf shor peeche reh jaata hai. Is chupne ke karan parvat gayab ho jata hai aur kavi ne iski tulna "udne" se ki hai.
Its meaning in english is dat
due to rain dere is fog. This fog covers d mountain n makes it difficult to spot it.Here dhua is a metaphor for fog. The greyish clouds look like paarak to d poet. This lyn jus explains dat the mountain vanished . The poet feels dat d mountain al of a sudden sprouted wings from nowhere n flew to some oder place.
Now u can form ur own ans. regarding dis