It is very much the longing to be born anew, the way nature is. All these elements fit together.
Easter is calculated as the Sunday that follows the first full moon after the vernal equinox. It is evidence of a concern centuries before Christ to coordinate the lunar and solar calendars.
What we have to recognize is that these celestial bodies represented to the ancients two different modes of eternal life; one engaged in the field of time, like throwing off death - as the moon it’s shadow - to be born again; the other, disengaged and eternal.
The dating of Easter according to both lunar and solar calendars suggests that life, like the life that is reborn in the moon and eternal in the sun, finally is one.
Thou Art That