Ib
jbWhat it is
The heart: the seat of thought, memory, will and character, and the organ that testifies at the judgement.
What it needs after death
To stay in the body, which is why it was the one major organ left in place during mummification while the brain was discarded through the nose as waste.
What “soul” loses
That the Egyptians located thinking in the chest. Every phrase that English renders as a feeling, wide of heart, weary of heart, is closer to a statement about judgement or intention.
The other parts
Ka
kꜣThe vital essence, created at birth on Khnum's potter's wheel alongside the body, and the thing whos...
Ba
bꜣThe mobile, individual part: personality and the capacity to act, shown as a human-headed bird.
Akh
ꜣḫWhat a person becomes if everything works: ba and ka successfully reunited after death, transfigured...
Ren
rnThe name, treated as a real component of a person rather than a label attached to one.
Sheut
šwtThe shadow, understood as a real part of a person and as something with its own presence and protect...