The dying Jacob blessed his sons, and asked them to return his bones from Egypt to the family burial plot where his ancestors, Sarah and Abraham, were buried. When I took on the task of translating the ancient tradition of the ethical will, to make it relevant to contemporary life, I intuitively named it the ‘spiritual-ethical will’ to highlight and make explicit the spiritual nature of legacy writing, though today I call this writing simply ‘legacy letters’.
(Consider our awe witnessing the birth of a baby or the thrill of viewing a magnificent sunrise.) We can only communicate about the experience of it with our limited senses, intellect, and language.
We can’t ‘see’ spirit, nor define, nor possess it. Writing about spirituality is difficult because spirit is ineffable.