Shri Sangom,
With what I could come across in couple of discourses during my teenage, it is not the rule that only the Souls that occupied Human Body once would again take an another human body in next birth.
The challenges of the kuli yuga are more and many souls are tend to occupy human body with Animal instinct and crooked mentality.
These souls do have their Karma load based on the basic instincts and other related activities of the species it has taken the form, before bearing the human body.
Dear Shri Ravi,
As you well know, I am also an ordinary person (may be older) and do not have any spiritual or other extra-ordinary intelligence to boast about. I was brought up in a very orthodox Tamil Brahmin household and, having gone through most of what might be called 'a human life-time', having witnessed many good & bad things in my life as also of several others, I have been thinking about Karma, Fate, Freewill and related topics. What I write here reflects my conclusions and I am fully prepared to admit mistake and revert back to our time-honoured views about these items.
I am unable to accept the view that
"The challenges of the kuli yuga are more and many souls are tend to occupy human body with Animal instinct and crooked mentality.". We do not have any vedic, upanishadic or even accepted Acharyas' support for this, AFAIK. (Pl. let me know if there are any.) IMO, the concept of Kaliyuga was put forward in the two epics (Kakabhushundi in Tulsi Ramayana, and Yudhishtira in Mahabharata, Vana Parva) and has been taken up with all sorts of licence in the different Puranas.
Now, if 'animal souls' can occupy the same human body along with a so-called 'human soul' which of the living person's aspects will be controlled by each of these? I don't know whether the discourse-givers have any answer for this question! Secondly, in such a scenario, where is the guarantee that those who give such discourses are themselves not guided by the occupant animal souls (may be anything - donkey, monkey, lion, tiger, king cobra even!)? So I respectfully disagree with such notions.
Increasing human population and the extinction of many species of living things cannot be logically explained by even this assumption of more than one soul occupying one human body, or animal souls alone (one in each body, if that is what you meant) occupying human bodies.
As regards instincts, perhaps you are familiar with our Gods, devas and rishis (along with their consorts/ chosen partners for that particular occasion) taking different animal forms and engaging in sexual union, etc. The Rishyasringa story is even more fanciful, though. How can then we exclude the possibility of those born as a result of such animal-sex-unions not having "animal souls"?
I, therefore, reject this Kaliyuga aspect as also 'animal' souls in human bodies. Even without such arguments, a human being can, imo, make himself/herself, as wild and base as any animal - in his instincts and behaviour - just by practices; that is my view.
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IMO, a person suffering in his life or enjoying in his life can not be based on accumulated karma of every unknown x, y, z unless otherwise it is based on justifiable reasons for an individual as per his/her personal karma.
If particular personal Karma belonging to an individual is not the truth, then the whole concept of Personal Spiritual Practices and personal deeds would make no sense for each individual.
Lord Krishna says - Not to be concerned about the fruits of your duties. Just do your duties sincerely without any personal expectations out of it. Taking this into account, can the truth be that, a right, sincere, uncorrupted and duty bound person would have to bear the wrong doings/sins of any other x, y, z? If that is the case, then that would contradict the whole concepts of Spirituality.
The problem for you appears to me to be the "equitability" and "justice" aspects. But let us reaffirm that all of us
are only during the brief interval between birth and death. We just don't have any idea about whence we came and whither we will be going. However, we imagine many things about the two large unknowns and create philosophies and notions.
In the beginning portions of your post - replied by me just above this - you have no doubts about animal souls occupying human bodies due to the exigencies of the so-called Kaliyuga, simply because some pravacanakartas said so. Don't you think this is also equally reprehensible as "
a right, sincere, uncorrupted and duty bound person would have to bear the wrong doings/sins of any other x, y, z?". Who took such a decision to put animal souls into human bodies and what were/are the eligibility conditions for such a "promotion"?
If we can allow such an exception, is it really inequitable for "
a right, sincere, uncorrupted and duty bound person would have to bear the wrong doings/sins of any other x, y, z?". I will try to explain my views. The
right, sincere, uncorrupted and duty bound person inside that human body is, imho, as much the result of the Karmas of X, Y, Z, etc., just as the misfortunes/tragedies which may befall that person. I would request you to read the analogy of the pending cases problem
in this post.