Are signs based on perception? Like for example, if I see a train crossing a road before work, does that mean something is coming to an end, or is it perceived that something is coming to an end? Based on my experience, I think signs mean that something is trying to manifest.
Signs are personal and unique to the individual. Its really about being in communication with the universe (which we are constantly but not always aware of it) so the significance of signs is really down to how you feel in the present moment and where your focus is simply. Signs aren't always about something "trying to manifest" but they can be a reflection of where your mind is at that moment in time, or about something else going on in your universe or reality that needs your attention too. There are endless possibilities.
Abraham says yes. We have what happens to us to show us how we feel. So it's not an indication of fomething outside ourselves. We would already be feeling an ending is happening and the train would mirror our feelings you see.
If it sticks out to you then YES.
I remember walking out to a huge empty parking lot that was lit by street lights because it was night. In the middle of the parking lot stood 5 flamingos standing on one foot. A sight I never saw. The next day I lost my job and found a job that paid triple.