We often hear the phrases like "Universe sending messages" or "Serendipity" whenever people describe an unexpected life-changing event, or an invention that happened unexpectedly as a totally unintended consequence of otherwise normal course of actions. As a Scientist, I do think that no new invention happens by either best design of experiments or coincidental chance taken alone. A deeper analysis always reveals that any notable invention is often the result of a synergistic meeting of statistical probability with well planned strategy, i. e. it's a combination of uncertainty with certainty that occurs at right time in right place. As Louis Pasteur said it correctly, "Dans les champs de l'observation le hasard ne favorise que les esprits préparés.' meaning 'In the field of observations, chance favors theprepared mind.' So, you must keep your mind alert, sharp and well prepared at all times, because you never know when Serendipity would visit you, or when Universe would tap on your shoulder to give you the serendipitous signs. Only your prepared mind would enable you to welcome wonderful Serendipity in your life, and understand the subtle signs sent to you by Universe.
Deodatta V. Shenai-Khatkhate