Well I Guess I Need A Dictionary

"Atman knows bliss inexpressible through words" pg 16 
Bliss(Noun) : Perfect happiness
-When you are extremely happy.
Synonyms: Felicity , Blessedness
 
"Just as when a country is ravaged with the plague" pg 16
Ravaged(Verb): Severe and extensive damaged


Indebted(Adj): "This fruit, for which we are already indebted to Gotama..."pg19
Owing gratitude for a service. Or owing money


"His peaceful countenance was neither happy or sad" Pg 22
Countenance( Noun, Verb): 
-A persons facial expression 
-Admit as acceptable

"when the heat abated" pg 23
Abated(Verb):
To become less intense