A burden of a true Master

"We are what they grow beyond...

...that is a true burden of true masters."
- Yoda

Eventually the pupil/student/apprentice will outgrow and surpass the teacher, meaning,
the student should not only learn from their master's success, but from their failures as well.
Student's actions and/or success is part of the master's legacy
and the master ought let go of the student.