People speak of getting rid of conditioning or samskara but they themselves are unaware of the fact that, the universe in which they exist is product of the inborn samskara or conditioning. The ignorance is cause of the inborn samskara or conditioning which present as ‘I’ or ‘I AM’.
First seeker must inquire into the nature of the physical body i.e. matter. Second he must inquire into the nature of the mind.
Observe at everything in nature because in everything there is consciousness. One should not avoid them, do not shut his himself to Nature; and he should not shut himself away from the world which is as much consciousness, as anything else because the consciousness is the cause of the three states and it itself is uncaused.
To say this world is illusion without first examining them and inquiring into them thoroughly is to delude yourself. The world is reality within the waking experience. Same way as the dream world was reality within the dream.
The person, who stamped their foot on the ground to refute to show the world, is real, ignore that in dream he would do exactly the same--stamp his dream foot on the ground and assert it to be real.
The dream becomes unreal when waking takes place. Similarly the waking becomes unreal when wisdom dawns. Wisdom dawns, when the waking entity indulges itself in deeper self-search and realizes the fact that, it itself is not the self. But the self is the formless witness of the three states. The formless witness of the three states is the soul or consciousness, the innermost self. Formless Consciousness also is the substance of the three states. Thus formless witness and substance of the three states are one in essence. Thus there is no second thing exists other than consciousness. Thus formless consciousness (soul) is ultimate truth or Brahman. Thus on the standpoint of the soul, the innermost self, all the three states are mere illusion. Whatever prevails without the illusion is ultimate reality or Brahman.