I came across this interesting little article by Ludwig Jaskolla and Alexander Buch regarding panexperiential holism. This is the thesis that:
“there is exactly one entity - the Universe itself. This entity can be
adequately described as being essentially
(i) an objective matter of fact,
(ii) objectively structured, i.e. not completely homogeneous,
(iii) a subject of experience and
(iv) exemplifying experiential content.”