It is also important to consider that the mind could subconsciously attract the signs it wishes to see. This is in my own opinion perhaps the most likely explanation for a coincidence, assuming that it is not of spiritual origin. And, there is always the possibility that a particular coincidence is indeed simply a fluke of the universe. I now feel that we, as living humans, cannot accurately make definitive statements about what is and isn't of spiritual nature.
(Disclaimer: I speak only for myself and not as a staff member here. My views do not necessarily align with those of the website's management team as a whole.)