Rare phenomenon of Nature, we call it ever.
Calendar is created by us but not by Nature;
Nature does exactly what it has to according to
Laws of Nature without fail in the Universe…!
According to our system, blue Moon has come
Into existence from the day Calendar has come
To function in the daily business of the world!
Blue Moon is something rare so to say for all
Our references and talking about something rare,
We make use of that phrase in our daily life ever!
Rare things concocted by man are never really so;
But when it happens in Nature, it is really rare sure!