Everything happens for a reason
Everything that happens is for a good reason
A good reason to be fulfilled
Regardless of when that time will
Come, but at the end of the day
There is a reason

A reason behind everything that happens
There is a reason why it happened
There is a huge reason why
It happened

The reason might not be known now
But eventually that reason will be found
The reason why it happened
It happened at that time
Nothing happens for no reason.