BE CONTENTED??

Don't spoil what you have---i agree , but while preserving that we must move forward and reach for higher desires 

and , To the statement
''Contentment is not a very spiritual approach to life. In fact, most spiritual traditions would say that contentment is the first step to true happiness—even to enlightenment or heaven''

i love to differ ,

Contentment is not a very spiritual approach to life., it is in fact , the end result of enlightenment 
hence 
spiritual traditions would say and emphasize that enlightenment is the first step to true happiness, and true happiness leads to contended life
till the enlightenment is attained aspirant should not rest, nor compromise at intermediate stages, but his fire of discontent should not be off till the goal is reached