What does it mean that professional boundaries?

Professional boundaries protect your work quality, your career development, and your well-being from the unlimited demands of organizational life.

Example: A senior engineer gets pulled into every architectural review, every hiring loop, every cross-team initiative because she's competent and agreeable. Her own project deadlines slip. Her deep work disappears. She starts working weekends to catch up, then evenings, then early mornings. She isn't failing at her job — her job is consuming her because she never defined what it could and could not demand. The day she blocks four hours of uninterruptible focus time and declines two standing meetings that don't require her, her output quality jumps visibly within a week.

Try this: List every recurring commitment in your work life — meetings, check-ins, on-call rotations, review duties, mentoring obligations. For each one, answer: Does this directly serve my core responsibilities? Would work quality suffer if I reduced or eliminated it? Am I here because I chose to be, or because no one else volunteered? Mark the ones where your honest answer is 'I'm here by default, not by design.' Pick one and draft a plan to exit, delegate, or restructure it this week.