How beautifully Mawlana said:
" اگر همه جا تاریک بود, دوباره بنگر شاید نور خود تو باشی."
( Agar hama jaa taarik bood, dobaara bengar shaayad noor khode to bashi.)
it means: If everywhere is dark, look again, perhaps you are the light yourself."
Persian is the language of poetry.