What is khushhaali dairpa nahi chandani chaar din meaning in English?

khushhaali dairpa nahi chandani chaar din - خوشحالی دیرپا نہیں چاندنی چار دن

Khushhaali dairpa nahi chandani chaar din in English

abiding enduring lingering endermatic endermic lastingness long time long lasting lasses longicorns dirgeful	دیرپا Dairpa
day	دِن din
day days daysman	دن din
disavowal for nay negation nihil nil nary nix no not unsay noh nonets nope an't han't ne exeat wa'n't	نہیں Nahi
four tetrad 4	چار chaar
light moonlight moonshine moonbeam moonseed moonbeams mooniest moonlet moonraking moonrock moonsails moonshees moonshiny moonery	چاندنی Chandani
richness succulency	خوشحالی Khushhaali