Comfortable: physically and mentally relaxed and free from constraint.
I've once read that being comfortable equates to you going down a hill.
It's true, going down the stairs is much easier and comfortable than going up the stairs.
Stairs: a set of steps leading from one floor of a building to another
I've realised that I should start getting comfortable with being uncomfortable - that's the only way progression will take place.
Progression: the process of developing or moving gradually towards a more advanced state.
That will be difficult if you're prone to laziness - I know I can do more but I just don't. What is the point of an outcome that has no sincere effort in it.
Effort: a vigorous or determined attempt.
Life: the existence between the birth and death of a living thing