Just as you can build your physical muscles, emotional, mental, and spiritual muscles can and should also be trained. Sustaining your pain builds your muscles. Another key to full engagement is to take regular breaks. The book re...

Personal values and purpose beyond self-interest are the driving force for spiritual energy. Passion, commitment, integrity, and honesty are crucial to building your spiritual muscles.

• Exercise regularly
• Eat healthy
• Get enough sleep
• Take regular breaks
• Work less, but more deeply

There are three things that affect your physical energy: exercise, food, and sleep.

Specific things you can do to boost mental energy include learning something new, solving a puzzle or a Rubik’s cube, and meditation.

The book suggests a training system that contains three steps for full engagement:

You must do what you need to do, but never neglect to make time for what you love doing too. And remember that relationship matters, so make time for your loved ones!