From the Arcanum 14 transcription:
Q. What happens in blood transfusions, in organ transplants?
A. Well obviously the blood is a vehicle of the soul, when you have blood transfusion you are taking the elements of the others into your blood; that is unquestionable. In a case of life or death, then take the blood. But obviously in the blood you take the inheritance of the others because the blood is the vehicle of the spirit.
Is this to say that a blood transfusion, due to imminent blood loss, results in permanent transfusion of inherited psychological traits?
This does not make sense to me. I could understand if a person was to receive a bone marrow transfusion. As this is a permanent alteration to the body chemistry. People who get bone marrow transplants actually switch to the blood type of the donor. By that, I mean, they will physically produce the same blood as the donor so that if given a blood test you would not be able to identify one from the other.
But in the case of a blood transfusion due to a lack of blood caused by injury, that donor's blood cells will eventually die off and be broken down. And afterwards the recipient's own blood will continue to be produced. In about 4 months the donor's blood will no longer be in the blood stream.
Furthermore, if person A receives blood from person B, is it being claimed that they both share karmic consequences or just the person who receives the blood? Because in this scenario B has not received any foreign blood. Only person A has. So does only person A receive, I guess, more ego to deal with. If both share the consequences, how does that work out seeing as person B has not received any foreign blood?
And how does this relate to the consumption of meat. If you eat a steak or fish or fowl there is some trace of blood matter. Because if we are talking about non-physical elements then aren't we consuming more "behemoth elements" when we eat meat? Could mosquitos spread karma?