Sometimes I think it is helpful to draw a distinction between rational and irrational fear.
In the case of irrational fear we have a chance to work with it. This is the important thing for us as meditators. We can see very clearly, how thoughts can create stories. A very important discovery to make. So sometimes it is just an innocent thought that comes and then you start imagining, and how this can even result in your panicking is a very important realisation. To see how from one condition arising there is a vicious circle activated in the creation of fear. In the case of rational fear you know that there is an objective fact and that is the end of it, that is it. But the impact it has on the person, whether it is rational or irrational is the same.
So with meditation, with awareness, we might be able to make these discoveries. And what is also important is to work with our fear in this way.