A burn out is related with too much stress, right?
Who is generating that stress?
What is stress in the first place?
It is pressure!
Pressure and stress are synonyms.
Pressure comes from your environment, from a mind set, from society, family and too high expectations.
Sometimes you generate your own stress.
Sometimes, it is generated by external forces: your boss, partner, family, clients, etc.
Observe the power dynamics involved.
These power dynamics is what generates a crisis.
You have energy and you simply run out of it.
A state of emotional depression is related with lack of power.
It is the inability to defend the territory of your mind.
Your mind space gets invaded and your emotional body simply gets drained.
You run out of energy.