Casgliad cynhwysfawr o fyfyrdodau gwreiddiol o waith Elfed ap Nefydd Roberts yn cynnwys dros 150 o fyfyrdodau a baratowyd ganddo dros gyfnod o ddeng mlynedd ar hugain.
A substantial collection of original meditations by Elfed ap Nefydd Roberts comprising over 150 meditations prepared by him over a period of thirty years.
