To understand what 'standstill" means observationally, it will be easier to
use the Sun as an example. The sun rises furthest to the north at the summer
solistice, around June 21 each year. Following the summer solistice it will
begin to rise a little further south each day, rising due east at the fall
equinox around September 21, and reaching its southernmost rising point at
the winter solistice around December 21. After the winter solstice the sun
will begin rising further north each day, rising due east at the spring
equinox around March 21, and finally reaching its northernmost rising point
again around June 21. The slow sweep of the sun's rising azimuth across the
eastern horizon takes a full year, and practically repeats itself exactly
from year to year. The rising point changes very little from day to day when
it's rising near either the northern or southern extremes of its motion.
This phenomenon is known as the "standstill." For several days around either
solstice the sun's rising azimuth will hardly change at all. In contrast,
when the rising point is between the extremes, say around the equinoxes, the
rising azimuth changes quite a bit from day to day. This phenomenon of
"standstills" near the extremes applies to periodic motion of many kinds,
including the motions of the moon.
The rising point of the moon changes from day to day in a very analogous
way, marking out a sweep from north to south and back again, except that it
takes only one month to accomplish one complete cycle. The actual period of
this cycle is the "draconitic month" of 27.21222 days, on the average.
Unlike the sun, however, the extremes of the northernmost and southernmost
rising azimuths will not remain the same for each cycle. After noting the
northernmost rising point for the moon during one month, one may very well
find it rises at a point even further north the next month. In fact, there
is an 18.61-year variation in the extremes of the moon's rising point.
A major standstill limit will happen at the moment the moon is near a
quarter moon and the lunar node is near the vernal (or autumnal) point. The
moon is at his highest point in its orbit and combining this with lunar
phase, the sun is near equinox.
After reading some of this it may be just a theory but they believe lunarstandstills allow for hyperdimensions