Both as what (Spirit) and who (individual soul/human) we are, we seem to be insatiable...
I notice this most recently in exploring music (through Last.fm, online radio, and other sources).
There is a deep and quiet exitment and satisfaction in exploring all this music from all over the world, having it at my fingertips, in my living room, being able to share it with others who have similar taste (or not.)
As who I am
As who I am, part of the satisfaction is to explore different parts of myself through this music, especially that of other cultures. I experience myself differently through this music, as I experience myself differently through the larger world in general... any situation, any relationship, any interaction, any engagement, any music, literature, theater, movie... all of these allows me to experience myself and the world differently... bringing new aspects and qualities out.
As what I am
And as what I am, it is the same. The infinite variety of the world of form allows me, as awake emptiness and form, to experience myself in, through and as this infinite variety. Why would awake emptiness arise as form, if not to experience itself as form...?
Awakening to what I am, while embracing who I am
By the way, this is where many approaches to spirituality seem to be a little one-sided. It is true that to awaken as what we (already) are, we need to disidentify with all our (fixed, limited) identities, to die to what we have taken ourselves as, to let go of beliefs in thoughts and ideas.
But this does not exclude living a full life. On the contrary, it allows us to live a far more full life, as who and what we are, in and through this human life. It is fully possible to disidentify from fixed identities, and let go of beliefs, in the midst of a full life.
Awakening to what I am, and experiencing without holding on
What they got right is that to explore life only as who we are does not give any lasting or complete satisfaction. Something will always seem to be missing, and that is awakening to what we are. And in awakening to what we are, we allow anything... There is an absence of holding on, no pushing away, of anything in the world of form.
We can be insatiable, just allowing what arises to arise, without holding on, without pushing away. Just experiencing (and enjoying) our form aspect, as this individual and the wider world, independent of its particulars.
The word insatiable has connotations of craving, desiring, clinging. When these are blind, it means that we have not yet awakened to what we are.
Here, I am using insatiable in a more free and loose sense, to include Spirit arising as, and experiencing and exploring itself as form. Spirit is "insatiable" only in that it arises as and in innumerable forms, always as new. But since there is no Other here, there is also no clinging.