When the present birth itself is an illusion then rebirth and reincarnation are only a hoax theory based on the false self (ego)within the false experience(waking).
Dalai Lama said:~ Buddhism need not be the best religion though it is more scientific and religion and inquisitive. But Buddhism has no answer to certain questions like the existence of Atama (Soul) and rebirth. Dali Lama said that as an individual he believes in rebirth as he had come across a few cases of rebirth. Modern science, Dalai Lama hoped would unearth the mystery behind the rebirth. (In DH –dec-212009-Gulburga).
Remember:~
From the Standpoint of the Soul, the Self, birth, life, and death and the world are part of the waking experience. The waking experience is merely an illusion. It is no use of saying that, we are not born, and we do not die. Whatever is born will die. deeper self-search reveals the fact that birth, life, and death take place within the waking world.
The waking entity and waking world are within the waking experience. the self is neither the waking entity nor the self is the dream entity but the Self is the Soul, which witnesses the coming and going of the three states.
The Soul is the Self. The Soul, the Self is present in the form of consciousness. Consciousness the formless substance and witness of the three states.
From the standpoint of the Soul, the Self the three states are non-existent as reality. Thus the three states are illusory. The waking experience is the reality from the standpoint of the waking entity. And the dream is the reality from the standpoint of the dream entity. The one which witnesses the coming and going of the three states is not the waking entity, but it is the Soul, the Self.
The Soul, the Self has no birth and has no death because the Soul is unborn eternal. . The one, which is born lives and dies within the world is the waking entity, which is not the Self. the Self is the Soul, which witnesses the three states without the physical apparatus. The Soul, the Self, is an ever the formless, timeless, and spaceless entity.
Without realizing the Soul, the Self people say: we are not born, we do not die. Without realizing the fact that, the waking entity is not the self, it is impossible to acquire Self-knowledge or Brahma Gnana or Atma Gnana.
Until one views and judges on the base of flesh, bone, and blood [five elements], he will not be able to grasp the non-dual truth. Thus, one must know from what standpoint, we are not born and we do not die thoroughly, just by hearsay views, it will not lead anyone to the non-dual destination. By believing in rebirth and reincarnation theory blocks one from realizing the Self, which is ever birthless and deathless eternal.
When one is able to view and judge the truth on the base of the soul as self, then only, the truth starts revealing. This is the inner process every serious seeker experiences in his well-directed pursuit of truth. The inner dialogue will start and one will start getting answers from the inner core of his existence. :~Santthosh Kumaar