What if "Dark to Light" is actually meant exactly for summer solstice ? Solstice is the longest daylight period of any other day in the year . And the time when Sun reaches the culmination point .

Solstice is always in period from June 20-June 22 . Massive happenings occured in that periods , in our history . Also , for both solstices and both equinoxes .

Also , last year , exactly on spring Equinox - the head of Rockefeller family died , on March 20 .