The addition of leap day or adding an extra calendar day every four years in February probably gave rise to the phrase "A year and a day". A year and a day has always been considered a magical span of time, used in all sorts of pagan customs.
The traditional period of study for initiation into the Old Religion of the Goddess is "A year and a day."

Calendar Differences

The Gregorian calendar resulted from a perceived need to reform the method of calculating dates of Easter. Under the Julian calendar the dating of Easter had become standardized, using March 21 as the date of the equinox and the Metonic cycle as the basis for calculating lunar phases. By the thirteenth century it was realized that the true equinox had regressed from March 21 (its supposed date at the time of the Council of Nicea, +325) to a date earlier in the month. As a result, Easter was drifting away from its springtime position and was losing its relation with the Jewish Passover. Over the next four centuries, scholars debated the "correct" time for celebrating Easter and the means of regulating this time calendrically. The Church made intermittent attempts to solve the Easter question, without reaching a consensus.

The recommendations of Pope Gregory's calendar commission were instituted by the papal bull "Inter Gravissimus," signed on 1582 February 24. Ten days were deleted from the calendar, so that 1582 October 4 was followed by 1582 October 15, thereby causing the vernal equinox of 1583 and subsequent years to occur about March 21. And a new table of New Moons and Full Moons was introduced for determining the date of Easter.

What is energy looping?

When you energetically loop with others and your fields are also out - the loop will continue past the time you are with that person physically. When you see them again, the energetic pattern will still be there. That person will continue to project their issues onto you whether it's quilt, anger, or pain. We all need to move out of this way of "looping" How? By working with the techniques of Being In The Moment. When you have all of your "bodies" pulled into self, your radar is no longer out there, and the energies can not project onto you. Believe me, this does work!