Sometimes, is it best to just listen and not splatter the other person with what you really feel?

I mean...sometimes...like when things just happen. Like when life just happens and you know you can't muster up enough courage to talk...so you just sit back and listen to what life says to you. Is that a bad thing? Because what if the things you here are actually pretty BAD in that sense of the world. But really, what can you do when there's just nothing left in you. Do you just let yourself go even though you know you'll eventually float down into a hallow, dark abyss?