Acumen most likely means “an ability to .”

reading poetry is challenging when you don't have or very little of social context and culture schema.

solution: read the introduction, the norm, or even explaination if you still dont get it.

i think that it is (line 11)

india has always been known for its ancient civilizations and contributions to the betterment of modern humankind. the written records of the first record of sugar were found, sugar was found to be used in hindu religious ceremonies and rituals along with milk, butter, cheese, and honey. the fire had been one of the very important elements in the hindu religion. the fire is known to be unpolluted.