I was thinking of this brief passage on page 11:Just pulled out my 1E Deities & Demigods (the first printing). What I describe is not there. There is only a repeat of the alignment coded planes of existence, different afterlife planes, and this weird nested geography and alignment coded circle of planes, but never used that.
The concept that how you live determines where you go when you die...pretty sure knew that from other sources besides D&D and didn't need D&D to say different deities pantheons may have different places Now the alignment alignment, that's D&D but never cared for alignment and pretty much ditched how the DMG told you to use it like 2 sessions after trying that out.
EDIT: Also just pulled out my Supplement IV "God's Demi-Gods, & Heroes" (alas only a 7th printing) it's not there either in any way shape or form.
“There is a time lag between death and arrival at the plane of destination. Although time is meaningless to the soul or spirit, the long journey to the proper plane can take 3-30 days of time relative to those in the Prime Material Plane. Thus the rationale for the progressive time limit on the raise dead spell becomes clear: the farther the soul has travelled on its way to its destination plane, the more powerful the cleric needed to summon the soul back to its mortal coil. The road through the Astral Plane to their destination is clearly marked for the dead, but it is not free of peril. Some monsters roam the ethereal and astral planes at will, which is why burial chambers often include weapons, treasure, and even bodyguards to protect the soul on its journey.”
They never did anything with that concept, and AFAIK never even mentioned it again, but the idea was there at least embryonically.