Whenever a man allows himself to have anxieties, fears, or complaints, he must consider his behaviour as either:
1. a denial of the wisdom of GOD,
or as
2. a confession that he is
out of HIS+ Will.
To be always in a thankful state of heart before GOD is NOT to be considered a HIGH PLANE of spirituality
but rather...
the normal attitude of one who believes that
"All things work together for good to them that love GOD, who are called according to HIS+ purpose."
Perhaps this holds true regarding all grumbling and complaining, also ?