Comfort is not your friend – it is in fact your enemy!
Change is nearly always uncomfortable. Though of course, with the right mindset you can consciously choose your relationship to that discomfort – and then it is just an experience and not a source of suffering in your life!
If you are comfortable, chances are you are not experiencing change.
If you are not experiencing change – you are not growing.
As the world is constantly changing, unless you too change, it means you are stagnating at best, going backwards (relative to the world) at worst.
So comfort is a sign of lack of growth and possible stagnation.
Therefore comfort is not your friend!