How can the soul remain undefiled if it's darkened by horrible deeds?
The soul is not performing the deeds. I thought I made that clear. The soul is not the body. Does the soul die when the body dies? Is the soul maimed when the body is maimed?
My pov is Hindu, and stated in part, in the Bhagavad Gītā:
The Blessed Lord said: “While speaking learned words, you are mourning for what is not worthy of grief [the body]
. Those who are wise lament neither for the living nor for the dead. Never was there a time when I did not exist, nor you, nor all these kings; nor in the future shall any of us cease to be.
As the embodied soul continuously passes, in this body, from boyhood to youth to old age, the soul similarly passes into another body at death. A sober person is not bewildered by such a change. …
That which pervades the entire body you should know to be indestructible. No one is able to destroy that imperishable soul. … For the soul there is neither birth nor death at any time. He has not come into being, does not come into being, and will not come into being. He is unborn, eternal, ever-existing and primeval. He is not slain when the body is slain. …
As a person puts on new garments, giving up old ones, the soul similarly accepts new material bodies, giving up the old and useless ones. This individual soul is unbreakable and insoluble, and can be neither burned nor dried. He is everlasting, present everywhere, unchangeable, immovable and eternally the same. It is said that the soul is invisible, inconceivable and immutable. Knowing this, you should not grieve for the body.
This, for me, is the reason I do not believe the soul is touched by what the body does. I
do mourn and grieve but it’s due to my attachment, attachment to the material is why we suffer. I still cry for my dogs who have left me but I’m mourning for myself and my weakness, no matter how many times I read the verses above.
So no, the soul is not and cannot be defiled by anything the body does. Moreover, that the body and soul are separate, and the soul is a part of God residing in the body, it is wrong to “hate” anyone unless one understands they are hating the actions of the body. That we are each portions of God, how can I hate me? If I hate you I am hating myself.
This is how distinct the body and soul are according to Hindu thought.