Fuamnach turned her to water, worm, butterfly Still assiduous Etain was kind Standing upon an inflection point Watching dolmen’s guide her mind. On Solstice day we pause to see, Lit bright by intrepid Sun, The bellwether of all we be: A young maiden’s life cast and undone.
Assiduous (adjective)
1. Constant in application or attention; diligent: “An assiduous worker who strove for perfection.”
2. Unceasing; persistent: “Assiduous cancer research.”
WordThink
Dolmen (noun)
In British archaeology a Neolithic stone formation , consisting of a horizontal stone supported by several vertical stones, and thought to be a tomb
Collins
Inflection point (noun)
A point at which a major or decisive change takes place; critical point.
Dictionary.com