The start of the spring in the Northern Hemisphere is indicated by vernal equinox which occurs on March 20 or 21. Conversely the Southern Hemisphere sees it as the beginning of autumn. A known myth about the vernal equinox is that the day and the night hours are exactly12, but generally doesn't happen that way. An interesting fact about the first day of autumn is that one can see the sun go directly overhead. Another surprising fact is that it is only during both the equinoxes that the sun sets due west and rises from the east. Spring for most of the people signifies the hope and search for new meaning in life.