A firm and unified belief
It is actually very important to strengthen a unified belief and put it into practice. Faith can sometimes give people great hope.
Routine training
We need regular training, because many times we will have a lot of things that we can't do, so we need others to help us point them out.
Insufficient summary
Usually, you still need to sum up and find your own shortcomings and deficiencies, so as to better improve yourself.