When we look at a gold ring, it’s shape, the feelings we have towards it, our ideas about it, our use and consciousness of it, all conspire together to make the ring into something which it is not. It is only gold. No matter in what shape we make a thing called a “gold ring,” the gold remains gold.
From this we can think of the conditioned world and our conditioned body we live in to be somewhat like the ring. It consists of countless physical shapes, our feelings, our ideas, our intentions (e.g., going to work, having desires and hopes, etc.) and consciousness. What remains unchanged is the substance from which these compositions arise which is free of them.
This substance is what the Bodhisattva awakened to who became the Buddha, who could then say, I am not anything conditioned and could also teach mankind not to identify with what you are not, this not myself being conditioned. Perhaps, even more profound and astonishing, the Buddha realized that this substance is our self which we do not recognize first hand. We are clinging to things that we are not in the wrong belief, “I am this.”
In this regard, the Buddha did not so much teach of a self but that we should not identify with what is not myself. This is a road of dis-indentification with the conditioned world and the conditioned body, including the conditioned thoughts that arise. This is a unique kind of meditation from where we all must begin. Zen master Sixin Wuxin (死心悟新) sums it up best who said:
"While still alive, be therefore assiduous in practising Dhyana. The practice consists in abandonments. ‘The abandonment of what?’ you may ask. Abandon your four elements (bhuta), abandon your five aggregates (skandha), abandon all the workings of your relative consciousness (karmavijnana), which you have been cherishing since eternity; retire within your inner being and see into the reason of it. As your self-reflection grows deeper and deeper, the moment will surely come upon you when the spiritual flower will suddenly burst into bloom, illuminating the entire universe. The experience is incommunicable, though you yourselves know perfectly well what it is."