Orun has been translated as Heaven.But the truth is Orun and Islamic / Christian Heaven doesn't mean the same thing.
The idea of heaven filled with golden streets, 72 virgins and mansion is Alien to us. Also the concept of Heaven is UP and Hell is Down is foreign to us.

infact, we don’t have the equivalent of Hellfire in Yoruba language .. The word hell was translated as Orun Apadi. Apadi literally mean “Broken Pot”
The original stance of afterlife of the yoruba people is misconceived/altered by Islam and christianity.

So what is Orun?

Orun is a contraction of Orirun.
The word Orirun is formed from two words “Ori” and “Run”
Ori is very important to yoruba people, that's why you can't see any Yoruba art or sculpture without the head, sometimes it's just the head.

There are two types of Ori:
(1) Ori Òde (Physical Head)
- used extensively to mean
-- The top
-- The Physical Self(A whole)
-- The Pinnace
-- The highest point
-- The main place
-- The major point

(2) Ori Inú (Spiritual Head)
-- Soul
-- Spiritual self
Used extensively as:
--

Destiny
--Life path
--Life purpose

When “Run” means:
--Originated (from)
--initiate (from)
--stem (from)

When you put Orí-run together it means the main place of origination.
The synonyms will be “The Source”
The word doesn’t suggest a particular place in the sky.

According to Yoruba belief, when you die, you join your soul group. It might be below the ground, Jupiter, or one of the stars. Orírun (The source) is not a specific place. They believe that when you die, you go back to that particular source you came from.

Orun or Orirun is not one specific place where everybody goes.
Orun is just a strong version of Orírun.
There is no promise of mansions, streets filled with gold, praising a deity for eternity while others burn in hell

As explained by baba Seyi sotubo esu odara