I love it that adaptability is included among the middot. If it weren't, we might be tempted to think of mussar as simply a set of rules, and rigid adherence as the way to virtue. We might think of mussar as saying to us, "Just stay within the lines I set and you'll be safe." But, of course, real life provides too many exceptions, dilemmas, and puzzlements to allow for such an approach.
The middah of adaptability is fundamental to existence; it is characteristic of God Himself.
For centuries, the Sages puzzled over the question of how anything besides God can exist. Is God not present everywhere in all His power? Where is the “space” for a material creation in such a universe? Also, how can human beings have their own thoughts when God is everywhere and pervasively present even within His mind?
"An increase of flexibility in the mind and the heart is a gift that benefits all who come in contact with us." -- Hart Lazer in introduction to Aleph Bet Yoga by Steven A. Rapp