Hi la lapine blanche,
I might not be able to provide you the answer you want but I hope
the aspect on the luminosity and the emptiness nature of
consciousness can help.
The clear knowingness that creates the deeply rooted sense of
Self, the agent before birth and after death, the sense of
permanency will first be experienced. When a practitioner first
experienced this Self, it is not uncommon to get overwhelmed by
this/ experience and conclude this Self as the ultimate core of
our Beingness. The result of this experience is partly due to the
luminous nature of consciousness and partly the habitual tendencies
of our current mode of enquiry. First we must understand that
Consciousness need not fit in nicely into the structure of what,
who, where, why and how which is merely one particular system of
enquiry that assumes reality is made up of isolated objects.
Although this is currently the ruling mode of knowing the
phenomenon world; it is by no means the only way or the best way.
Imagine what if consciousness is not an object of anything and
cannot be bounded within a space-time continuum? Will such mode of
enquiry that is strictly based on grouping, categorization,
measurement and comparison understand the essence consciousness? If
not what other modes of knowing are available? In Buddhism,
mindfulness is a preferred mode of experiencing reality as it is.
It goes beyond symbols, labels, thoughts and see reality in a raw
and undefined mode. By going beyond this layer of abstraction, one
is able to perceive without any in between intermediary leading to
the gradual dissolving of illusionary categorization and division.
Self dissolves too as it can only lives in symbols. Only then we
are equipped with the condition to understand more about our true
nature. This is a pre-requisite.
Next, if we merely think that the flow is only a chain of thoughts,
emotions, mental states in a series of self1, self2, self3 changing
from moment to moment, we still missed something valuable. It is
not just so.
When a mind reaches certain level of clarity, thoughts subsides and
before perception arises, what happened to the series again? Does
it cease to interact and stop becoming a flow, a flux of becoming
or a stream of moments? Has each of the moment of the self series
(self1, self2
selfN) ever appear to us that it is the light of the
sun, the blue color of the sky, the taste of the food?
The purpose of all teachings and all sutras are provisional means
to bring us to the intuitive insight of the immediate moment. In
lightning flash moment, the vividness, the color, the sound, the
texture and the fabric of reality are manifested and
instantaneously it is gone. All karmic propensities and the entire
mystery of life and death are in this instantaneous moment of
arising and ceasing. It is not else where, it is the depth of
clarity that matters. It takes the perfect mental clarity of the
Blessed One to penetrate to the deepest depth of this moment. Do
not overlook it.
My 2 cents. 
