Faridudin Attar (فریدالدین عطار) Ilahi Nama
The Ilahi-Nama (الهی نامه) is another famous compilation of verses by Faridudin Attar comprising approx 6500 verses. Like his Conference of the Birds, it is narrated in form of a fable about a king who faced lowly and selfish demands of his songs. The wise King starts narrating tales with deeper moral and spiritual message to his songs, which is effectively spiritual advice for the readers.
Read full text in PDF below [Persian Text]. Link opens at at Archive.org. As stated on Archive.org, such poetry of Attar is ancient and in Public Domain.