A couple small but I think crucial points here.
For example, sitting in Zazen merely as a meditation practice is (in my opinion) not going to make you a Buddha without some sort of Understanding first.
In addition merely reading or study of Buddhist texts or even teaching parables and Koans will not get you there either.
So, I guess many people will accept that only a combination of intellectual understanding and practice...that could be Zazen meditation is required.
For that reason you need at least an exposure to both...they complement each other...Understanding and Practice that is.
Now, fast forward to the question about about your "Buddha Nature"....and how to realise it.
Again I don't hink you can realise your "Buddha Nature" by pure study or any intellectual means...you also need practice...whether it is by meditation or some other means to balance your study.
At the same time pure study, without a coresponding practice is also useless at nwing your inherent "Buddha Nature".
Again it needs a combination of both study (learning) and practice (o.k. let's just say meditation) to gain the proper Understanding.
I would have thought that should be obvious...but maybe it isn't obvious to everyone...we all have our own differing interpretations of what we think we see in frontof us.
I should also say that this combination of intellectual understanding and practice is also the key to realising your inherent "Buddha Nature".
That is because although we as sentient beings may be born with an inherent "Buddha Nature" from the moment we are born what we can call our "Monkey Mind" or "Ego Mind" begins to spin "Illusions and Delusions" about what we call reality.
Therefore we have to make a great effort to overcome these illusions and delusions in order to understand our real "buddha Nature".
Unfortuneatly the reality is my computer is about to run out of battery power, so I have to close here.
Shame on you Shakyamuni for setting the precedent of leaving home.
Did you think it was not there--
in your wife's lovely face
in your baby's laughter?
Did you think you had to go elsewhere (simply) to find it?
from - Judyth Collin
The Layman's Lament
From What Book, 1998, p. 52
Edited by Gary Gach