From the dream-interpretations, in verse, attributed to Astrampsychus (alpha 4251), but see under nu 315. Oddly, the present headword nenhsme/na is not the participle used in the verse, keklwsme/na.
An allusion to the old metaphor of spun thread as fate. Plato (Laws 960C, web address 1) uses the aorist participle instead of this perfect participle with the same meaning, and Philostratus uses the same word (Heroicus 732.7: diepo/rqmeusen au)to\n e)s th\n *fqi/an dia\ ta\ e)p' au)tw=| keklwsme/na, "Thetis sent Achilles away to Phthia because of what was fated for him", i.e. to prevent him dying in Troy.)