Humans(3rd density template) are not designed to feel much empathy for that which does not resemble it. You can be polarized positively and not think much about killing ants, straws of grass etc.. If you can keep your heart/throat activity stable after consciously killing an ant, there is no loss of polarity is it? Killing a human is another thing.. You need first to gather enough negative polarity to end another's life.Then return to positive polarity through ridding yourself of all your guilt etc. Only adepts will be able to perform this radical change in such a small time frame.
If you find yourself in a situation where forgiving/healing yourself post-action would be too tedious, it would probably be wise to refrain from acting in a negative manner.
If you find yourself in a situation where forgiving/healing yourself post-action would be too tedious, it would probably be wise to refrain from acting in a negative manner.