Generally speaking, humans - or at least, a large segment of humans - aim to be able to enjoy a comfortable living, furnished by way of income, shelter, and relationship stability, among other things. It is perhaps, then, the cruelest twist of fate that comfort - insomuch as routine becomes it - paradoxically becomes one of the greatest barriers to continual development and accrual of things that may then provide additional comfort. Simply put:
1. We seek comfort
2. Routine becomes comfort
3. Comfort destroys comfort
Alas, such reality is one of the greatest sources of existential dissatisfaction among the population at large.