Fear is like a magnet. If you are afraid that something will happen to you and you get obsessed about it happening, you are effectively invoking it to happen.
If you are very afraid that something might happen to you and you begin to visualize that it might happen or how it might happen, this terrifies you and it closes you into a phobia and a state of fear. What you are doing is invoking it to happen, because the power of the mind and visualization is very great. If you are afraid that you might be robbed, or of meeting with an accident, or of losing, you are invoking the robbery, the accident and the loss. Fear of rejection produces rejection.
That is how extraordinary the power of our mind is. That does not mean to say that we should not take the necessary precautions. An aged woman knows that to fall can mean her bones might break more easily. She should not be preoccupied with a fear of falling; she simply needs to apply attention and precaution when walking. But when precaution is confused with fear, it is not a healthy precaution or one that is free from worries.