Qn : "What happens after a person commits suicide? Is it really an unforgivable sin resulting in eternal damnation?"
1stly, the idea of sin is itself a delusion (as is the case with most religious precepts).
2ndly, there is no eternal damnation.
3rdly, what happens after suicide, and how negatively it is perceived by the guides & helpers and those on the other side, is on a case-by-case basis (obviously & naturally).
Indeed, for a majority of suicide cases, it is perceived negatively, not so much with judgement & condemnation, but more with sympathy & regret. Because every physical incarnation is incredibly precious, and so much team effort has been invested behind every single individual and every single physical incarnation, for the lifetime's carefully laid out plans to be cut short prematurely is viewed as a terrible waste of effort & opportunity.
However, in a minority of suicide cases, and in most euthanasia cases, due to sympathetic circumstances, eg. severe incurable medical conditions, or if the 'suicide' is clearly an act of self-sacrifice, etc, the suicide (and/or euthanasia) is viewed with complete understanding & acceptance.
A quick note about depression (the major motivation underlying most suicides), a question could be asked "Does depression come from the physical body or the soul?"
The answer (obviously & naturally), is case-by-case. But as with all complex conditions, in almost all cases, it is a combination of both. It's more a matter of the % composition (eg. 50% from body + 50% from soul), and how they work in concert with each other, from a karmic perspective.
For instance, say a soul has committed suicide many times in his past lives, even when circumstances were not considered that dire. In other words, this particular soul has become imbalanced with a propensity to 'take the easy way out' a little too often, resulting in much wasted team effort behind each lifetime cut short by suicide.
This results in an imbalance within the soul, both the propensity to 'take the easy way out' and consequent or associated regret or sadness within the soul (because the individual soul is always the harshest judge of itself) who yearns to do better in future lifetimes, to learn and grow as a soul (one of the principle objectives of physical incarnation).
So there is a seed of depression coming from the soul into the lifetime. But at the same time, to karmically facilitate this setup for this upcoming lifetime to be suicidal, the soul will select (voluntarily or otherwise, depending on the soul's willingness to work with counsel from the guides & helpers) to be born into an upcoming available physical body whose genetics & biochemistry, and/or family upbringing & local environment, would have a high risk of suicide.
So psychiatrists are correct when they say severe clinical depression and suicidal tendencies are the result of biochemical imbalances in the brain, and psychologists are also correct when they say depression and suicidal tendencies are the result of exposure to risk factors such as family upbringing and local environment and one's own willingness to deal with personal challenges.
However, and herein lies the pity, that generally, psychiatrists & psychologists, and society in general, do not see the bigger complete pieced-together picture, which is the coordinating role of the soul and its own karmic learning needs.
So again to address the question, the source of depression can come primarily or initially from either the physical body (ie. genetics & biochemistry), or be experienced & felt directly from the soul to the incarnated personality, but in most cases (as with all complex conditions being multifaceted & multi-dimensional), ie. orchestrated by the soul and his guides & helpers based on karmic needs, both by choice of physical body genetic predispositions, as well as by orchestrated specific life events (eg. a painful relationship breakup, a devastating job loss, etc) that would trigger or precipitate the suicidal motivations, thus giving the soul the much valued opportunity to make up for its failures (ie. suicides) in past lives, by allowing the soul to make the decision in this lifetime instead, to take the challenges head-on instead of the suicide way out, and thus consequently the soul learns & grows in strength & wisdom, if it chooses correctly or wisely this time round.
If anyone reading this post has further questions, feel free to ask.
For a better & deeper (non-religious) understanding of life, death, reincarnation etc, download the 'Books on Reincarnation' for your reading pleasure :
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