Pleasure tolerance is a topic that needs to be addressed by all personal growth methodologies. Pleasure tolerance means being able to accept life as pleasurable only up to some limit. It means not allowing your life to get too good. If life becomes pleasurable beyond that limit, subconscious mechanisms are activated that bring the level of pleasure back down to the acceptable level. Everyone has a pleasure tolerance.
Some people can tolerate more pleasure than others.
I know people who have a very low tolerance to pleasure. They constantly make negative statements about themselves and their lives. They don't laugh at jokes and they almost never do anything for fun. If I compliment them on something, they don't accept the compliment. I know other people who have a very high tolerance to pleasure.