Insight
Now let’s try to identify what that thing is, if there
is something there at those times of insight that gives you that
conviction, that certainty; something that makes an insight have
more truth than just an ordinary perception of your state. In
the experience of insight, isn’t there more of a sense of
freedom than in ordinary perception? Don’t you feel a sense
of expansion, a lifting, a sense of satisfaction? And insight
generally has two things, the content of the insight and something
else – the energy present in the insight that gives you
the sense of certainty and expansion. (Diamond Heart Book 1, pg
152)

With an insight, there is an energetic sense in your mind and
body that indicates more certainty and gives you a sense of freedom
that is more satisfactory. It’s a much more palpable, believed
sense of freedom. As further insights occur, they will go deeper,
and the certainty also gets deeper. When this process continues
for some time, you might feel there is something there in the
air somehow, almost like a taste, a fragrance; you taste, sense,
smell, feel it – something almost sweet, satisfying. There
is a sense of an intimate kind of closeness to yourself, along
with a freedom of expansion. There is an experience of satisfaction.
(Diamond Heart Book 1, pg 153)

Insight and concepts
Insight requires concepts. So in some sense, it is not one-hundred-percent
fresh. But it is closer, fresher. It’s seeing something
about reality that is closer to the immediate experience. If you
get completely close to the immediate experience, of course, there
will be no form then. The form disappears little by a little.
(Diamond Heart Book 4, pg 293)