The sun appears to cross the plane of Earth's equator
when it reaches either one of the "equinox" points in the sky.
At those times, the lengths of day and night are nominally equal
everywhere (except at the poles), and the occasions are marked
as the beginning of Spring and Autumn.
She convinced Robert to have a child with her which is Trevor and then hides Trevor most of his child hood while pretending she is the maid so they can be seen together