BIRTH, LIFE AND DEATH ARE HAPPENINGS WITHIN THE MIND/'I'.
If one wishes to free his-self from the illusory state of cycle of birth, life and death, which is present as mind, he must awaken to non dual truth, which is hidden within the mind as its invisible substance and witness.
The birth, life and death are happening within the waking experience [mind]. They cease to exist without the mind. It is erroneous to seek truth on the base of 'I'. `I' is the false base, and keeps one in the web of duality. In the clutches of waking experience [duality], he will only able to view and judge the truth, on the physical base, and will be unable to cross the boundaries of the waking experience[ mind or duality].
Since people are unable to cross the boundaries of the waking experience [mind], because they are conditioned to view and judge on the base of 'I' which is the false self. The 'I' base ceases to exist without physicality. Thus 'I' is not the permanent entity. Therefore, it is necessary to know the eternal identity in order to realize the mind is mere illusion.
If one becomes aware of the fact that mind is mere illusion then he becomes aware of the fact that birth, life and death are also illusion, because they are within the mind.