Everyone likes to stay comfortable and safe. No change is best. This mindset was fine in the last century, but not this one!
Having a stable life without constant change is good, temporarily. Long term stagnation, however, is not healthy. It forces you to relax and becomes lethargic.
You have to understand that the world is changing everyday.
Everyone works hard to earn a living.
Everyone strives to have a better life.
Everyone improves hoping to better themselves.
If you stay put and watch others go by, you will be left behind. People are always catching up. They are moving ahead each and every day, hour and minute.
Be unstable. Throw yourself out of your comfort zone. Be insecure!
Being unstable makes you want to stabilize.
You start to compare and set reference.
You start to see things in details.
You want to catch up so that you will be on par with the rest of the world.
You want to be the same as others, for the sake of comfort.
You move with them, the constantly improving ones.
Hence, being instable is actually being stable. Ironical, right?
Taking a break and resting (for a short while) is good. But too long a period becomes detrimental to your future.
Improve through being unstable. It helps.