Something i must clarify. once one has experienced the fundamental... it is no longer possible to look within, since no sooner does one seek to look within than one finds oneself focused on the obective world. it just becomes impossible to look within any longer. one finds that the objects one is looking at take on the warmth and personality of what was once experienced as the Self.
initially, seeing the external world is a direct experience of the tathata, however this looking is only purified once one has gone beyond all names, words and explanations... before returning to them.
quite simply I do not know what it is, i no longer see anything or perceived anything that can be called something. therefore what was once experienced as the 'nature within' now no longer has any describable nor non describable characteristics. it certainly can no longer be called a nature. however... i recognise that there is only the objective world, seen subjectively and that this objective world is the Fundamental, which does not exist.
best wishes, White lotus. x
i hope my wording is not sloppy. and that you will understand that simple and inaccurate expressions are needed in order to explain what i see. degrees of truth where ultimately it cannot even be called Void or nothingness.
in any matters of importance. dont rely on me. i may not know what i am talking about. take what i say as mere speculation. i am not ordained. nor do i have a formal training. i do believe though that if i am wrong on any point. there are those on this site who i hope will quickly point out my mistakes.