Why Must It Change

Why must there be a constant change
Life has many faces
When one gets to a stage they enjoy..
Why do they need to fear what is yet to come..
Life has too many ups and downs
They come fast
Things are going well
Then it all falss apart
And one must think there will be a better day once again
But a better day is only followed by more pain
It will continue ...back and forth
Playing one ones mind
Is life a game of chance?
How do we know we will end our days with joy..
So i ask ...Why must it change ??
When all your dreams ...seem so real !