We are all a part of “comfort zones” in which everything seems secure and familiar. With time, we unintentionally collect several habits that end up being a trap conjoint, yet opposed with comfort. Some of those collections manage to slide into our unconsciousness to define our behavior and thoughts. This deprives us from freedom of decision-making by implicitly eliminating alternatives and possible better solutions. We will be stuck in a prison of comfort as long as we let those destructive habits rule us. Periodical reviews and break out attempts from comfort zones are quintessential for every homosapian in order to progress.

Habits

Habits are repetitions we unintentionally do or pass through without questioning.
A human brain is programmable like a computer:They both get programmed by developing cycles to navigate/alternate between daily life tasks and procedures with less resources. It's usually difficult to change a habit without external interventions.

Human seeks stability

Nature seeks stability. Due to the evolutionary human nature, man also seeks stability for instinctive survival and continuity reasons. It is sought on a vast array of levels; psychological,  spiritual, social trends, professional, physical/mental security, biological, emotional and balance. In order to reach stability, one tends to develop habits that form a shortcut to his daily needs with less management resources. Basically, the less management resources spent to execute tasks, the more development will load on top of them to reach a stable system. One should unstabiliz stable states to reach higher levels of stability.

Habits: friend or foe?

Some people consider that executing a certain act or procedure for 21 days transforms it into a habit and makes it a part of one's system - well the 21 is just a number that varies for people in subject, and represents the repetition part of the self programming task, until it reaches the stable state called habit. A habit exists when your brain circuits get programmed using a set of routines and sub-routines looping inside the back bone of your mind.

Suddenly ....  BAM! COMFORT ZONE (CZ)! Separators rise up. *** (problem?)

Once you are in the comfort zone, you start lacking the motivation to do or want more. It is the state when CZ walls turn from extenal threat defenders into internal upgrades of denial. If comfort zones are not perpetually reviewed, those that are supposed to be protective walls might turn to a mental prison. CZ is a friend as long as you are free for hacking/reconfiguring.

You know you are a prisoner when

You get drifted and sucked looping inside routines you don't realize you don't enjoy anymore.
You fear change, even when it's a pure success
You are afraid to change habits because "it's already working fine" (e.g.: you always tend to sit at the same place; you are afraid to switch work because your are happy with the current one)
Attachment or being haunted by your past is also a jail, it's like your brain begging: "please master let me keep those memories"

How to break out of your comfort jail?

"Change" is the keyword. Your ability to break out is directly linked to the coefficient of your ability to deal with change. Make an inventory that has all your CZ and apply the following:
1- Break your daily/weekly/monthly routines
2- Make a change, do it yourself (within yourself and surroundings). It's better to drive the change than anticipate it. Yet, it's better to anticipate the change than resist it.
3- Be proactive whenever possible.
4- Get used to and try to take risks
5- Push yourself beyond boundaries, try new things and enjoy discovering the unkown
6- Leave room for unplanned events
7- Sit in different locations each time you visit the same place
8- You can always try those 43 ways

As a result:

Finding a Comfort zone is one of the the best ways to maintain stability but it decelerates your progress. A balance should be maintained between Comfort and Change in order to synergize Stability and Progression.

[This piece of shit was written for personal future consultations, for every time I find myself protected in some comfort zone, jail/protection discrimination should always be done.
It was posted on this site following some peep's requests]