Moksha only means knowing the ultimate truth or Brahman. That is why they have coined the word Jivanmukta.

People want to know about rebirths. Theosophy speaks of 50 to thousands-year intervals between death and rebirth. But all these are imaginations based on the false self ( ego or waking entity). There is no relation between the standard of measurements of one state of consciousness and another. All such measurements are hypothetical. It must be distinctly understood that it is not the soul that comes and goes, but the three states which appear and disappear. The three states are mere illusion on the standpoint of the formless witness which is the soul, the innermost self. The soul is present in the form of consciousness. 

Gaudapada’s rational exposition of Advaita: - that whatever is seen, whether external or internal, whether by the ordinary persons or yogis, is unreal. 

Heaven and hell are side by side. Separation is ignorance. Hence one has to realize his body, his ego and his experience of the world are one in essence.   if one thinks that there is a heaven  and hell that he is in  ignorance  or  Agyan. "Through wisdom" --i.e. wisdom consists in knowing the truth, that "All is Brahman," nondual. Mukti or freedom  is always there and yet one doesn't know it. 

When the reasoning faculty is rectified from egocentric to soul-centirc that he  has turned away from objective awareness. (universe or waking), has secured and  attained the serenity of the  formless soul, the innermost self, there is nothing else so blissful, so well-known, so easily knowable, and quite so near as Brahman.

Moksha is interpreted in various ways. It means the dispelling of ignorance, freeing the soul, the innermost self from bondage of the illusory experience of birth, life, death and the world--all other meanings regarding heaven etc. are all imagination. Moksha only means knowing the ultimate truth or Brahman. That is why they have coined the word Jivanmukta.

The real Moksha or freedom is to realize the fact that ‘I’ consciousness is mere physical awareness. Physical awareness is not self-awareness. The self –awareness is   when the formless soul (consciousness), the innermost self remains aware of its own awareness.

The cause of thirst for life and a thirst for rebirth is ignorance of the true self.  Real rebirth is dying from the matter into the Spirit. This is the significance of the crucifixion of Jesus. Whenever identification with the body and the world exists, a body and the world are always available, whether in the dream or waking or vision or astral, till the duality disappears by merging into the Source – the Spirit. The soul is in the form of spirit or consciousness. .

The stone which is projected upwards remains in constant motion, till it returns to its source, the earth, and rests. Pain continues to give trouble, till the pre-pain state is regained.

The quest for self-knowledge is inherent in the very nature of life, which is Absolute Existence – truth. Although indestructible by nature, by false identification with its destructible instrument, the body, consciousness imbibes a false apprehension of its destructibility within the false experience of duality; hence it tries to perpetuate that instrument, which results in believing the birth, life and death as a reality. But however long these experiences may last; they eventually come to an end and yield to the Self, which alone eternally exists.

Sage Sri, Sankara says:- VC- 65. As a treasure hidden underground requires (for its extraction) competent instruction, excavation, the removal of stones and other such things lying above it and (finally) grasping, but never comes out by being (merely) called out by name, so the transparent Truth of the self, which is hidden by Maya and its effects, is to be attained through the instructions of a knower of Brahman, followed by reflection, meditation and so forth, but not through perverted arguments.

66. Therefore the wise should, as in the case of disease and the like, personally strive by all the means in their power to be free from the bondage of repeated births and deaths.

The seeker has to give up the false identification with the ‘waking entity or ego’ which is the false self within the false experience  and, remember, the  waking experience cannot exist without the soul,which is present in the form of consciousness,  whereas the the soul, the innermost self  can exist without the three states.  The the formless witness (soul) and the   three states are one in essence. 

People think human being may take an animal birth in some other life. These ideas are based on accepting the present birth as reality. deeper self-search  reveals that,  the self is neither the waking entity nor the self is dream entity but the self is formless soul,which witnesses the three states without the physical appartus.  Therefore, the present experience of the  birth, life,death  and the world are falsehood or illusion.  Thus, the seeker has to realize the fact that, individual experience of  the birth, life, death ,which takes place within the waking experience  is part of the illusion because from ultimate standpoint the three states are mere illusion. Therefore the rebirth and reincarnation theory is mere imagination based on the false identity, within the false experience.

The cause and origin of the three states is consciousness. The consciousness appears as waking or dream (duality) and disappears as deep sleep (non-duality). Thus it is for the seeker to know what appears as duality (waking or dream) and what disappears as non-duality (deep sleep).

The body and the world are existing only in duality (waking or dream).  They are non-existent in non-duality (deep sleep). To unfold this mystery one has to know what is the mind and what is the substance of the mind.

Only in duality (waking or dream) one knows that he exists, in deep sleep the objective existence is absent.

One is aware of his body and sees his body moving and thinking. But he is unaware of the fact that he and his experience of the world are within the experience of duality (waking or dream).

One has to realize the fact that, the body also moving and thinking and being in all sorts of places in the dream while it is actually lying fast asleep. The dream is reality until waking takes place. The waking also is reality until the wisdom dawns.

This Advaitic Gnana or wisdom is the supreme secret. That for which the seeker has to make or do all things is to understand, assimilate and realize the Supreme Truth or Brahman, this Gnana or wisdom.

The real Moksha or freedom is   to realize the fact that ‘I’ consciousness is mere physical awareness. Physical awareness is not self-awareness. The self –awareness is when the formless soul or consciousness remains aware of its own non-dual   true nature.

The path of wisdom is inner (mental) journey. Self-knowledge and wisdom are one and the same thing. Without the intense urge it is difficult to tread this path. Self-realization is not an experience because the self is not an individual because it is formless and it pervades everything and everywhere in all the three states. 

The soul or consciousness, the innermost self is the witness-consciousness that experiences the action, the actor, and the world of separate things. It is like a light that illuminates everything in a theatre, revealing the master of ceremonies, the guests, and the dancers with complete impartiality. Even when they all depart, the light shines to reveal their absence.

A deeper self - search reveals the fact that: -the experience implies duality.  And duality is falsehood from ultimate standpoint. The ego, body and world appear together and disappear together.  One cannot get rid of the ego alone. It is no use of challenging or indulging in argument whether one is right and others are wrong, in pursuit of truth, because the pursuit of truth is the pursuit of verification.  It is for the seeker to know how he is right how others wrong and on what standpoint he is right and others are wrong. And   seeker has to verify himself what he knows as truth,   is truth or not.