Constant happiness causes boredom and then bad behavior / insanity of a sort
Constant anguish is unbearable
Let’s say you enjoy sex. You just can’t keep doing it all day. Or you like pasta pizza dosa. You Eat daily and soon your mind will seek something different
The mind is programmed in that
Why?
The illusory world can never Satisfy you
The world within – true soul perception is wave after wave constant joy. You just don’t want to leave it
This is what Yogananda said
“You will tire of all things quickly once you have them. You will tire the quickest if you win every material thing you desire; but there is one thing you will never be tired of, either now or throughout eternity, and that is the ever new Joy realized in God-contact. Joy that is always the same may cause boredom, but Joy of God, which is ever new and continuous, will entertain you forever. Such Joy can be found only in deep meditation.”
- Sri Sri Paramahansa Yogananda
( Journey to Self-Realization)
It will take many life times to get your mind re programmed with this truth
You may understand it. Accept it but your will will refuse to submerge within