Several insights struck me. The most important was that the secret of becoming "dragon kungfu master" is "nothing."
The secret of "nothing"
The panda and his kungfu master and friends were initially devastated when the panda opened the scroll and found there was nothing written in it. Fortunately, the panda understood the message of the scroll when his father told him that the secret of his noodle recipe was "nothing."
It then dawned on the panda that who we are is more important than what we know.