Why limit the worldly happenings to suffering alone even pleasure and happiness is part of the happenings. All situations good or bad, suffering and happiness, negative or positive, good or evil are the happenings within the illusion/duality.
The suffering experienced in the dream becomes unreal when waking takes place. Same way the suffering experienced in waking becomes unreal when the wisdom dawns. Since the intoxication of illusion /duality is stronger then any drug and liquor it takes time dilute the intoxication with the power of wisdom. The one who thinks the life with in the waking is reality is in the grip of the illusion and experiences the duality as reality, and lives moment to moment , and disappears along with moment with all his illusory baggage.
Since everyone bases his understanding on the waking entity they will permanently think on the base of the ego and they will never cross the threshold of the duality.
All the birth, life and death are happening within the waking experience. The birth, life and death within the dream becomes unreal when the waking takes place similarly when one becomes aware of the fact that the true self is the soul, whatever seen, known, believed and experienced as a person of the world is mere mirage. The waking also is created out of the same clay from which the dream is created. The substance and witness of the three states is the self/soul, which is in the form of consciousness or spirit. The self/spirit can stay with or without the waking or dream.
When one mentally focuses his attention on the formless witness of the three states then conviction becomes firmer grows the burden and bondage of the duality will start fading and one becomes free from experiencing duality as reality. It is called awaken sleep. That is awareness of seeing all the objects as sprit in the midst of duality. Because everything [mirage] is created out of spirit, sustained by spirit finally dissolves as spirit.
The purpose of the self- knowledge is to overcome the ignorance, because the ignorance is the cause of experiencing duality as reality. By experiencing the duality as reality the birth, life and death and pain and pleasure experienced as reality.
On the stand point of the soul/self there is no me or you, or others and the world. No seeker, no seeking and no guru. There is no pain or pleasure, no path or purpose, and nothing that has to be achieved.
All appearance is soul/spirit. All that has appeared as the birth, life and death and the world is mere mirage created out of the soul/spirit/consciousness. There is no separate intelligence weaving a destiny and no choice functioning at any level. Nothing is happening, nothing has ever happened and nothing is going to happen.
The seeker of truth has to discover that which is the abiding, uncaused, unchanging, impersonal source from which the mirage /duality arises and subsides. The true self is always unaffected and apart.
