When Heathrow Airport was built the north runway covered an ancient temple thought to be the oldest ever discovered in Britain.
The temple has been likened to a classic Greek temple only made of wood rather than stone.
William Camden references it in Britannica.
“On the north edge of Hounslow Heath towards King’s Arbour is a Roman Camp, a simple work and not large.”
Heathrow was the scene of the largest ever archaeological dig in Britain between 1998 – 2006.
The Ba is the spirit. It is often translated as “the soul”. The ba is shown as a human headed bird. “The ba could move outside of the tomb, and return back to earth” (Defrates 44). “There was probably only a phonetic relationship between the bird and the concept”
In his post cyber-punk novel Pattern Recognition William Gibson mentions ‘soul delay’ experienced after long flights:
“Souls can’t move that quickly, and are left behind, and must be awaited, upon arrival, like lost luggage.”
Whether this has any truth in it or is a use of fictional artistic license depends on your own experience of jet-lag.