A example might be helpful.
We can think bitcoin is a flying bird
that has a life it can fly up on the sky or can fly on the lower part.
Everyone is happy to see it.
It is very charming.
But when Bitcoin become stable
it is like a sculpture of a bird
or a bird in a cage
it has no life,
it can not move,
But it is nice to see it..
That's all of btc in a cage.