Ancestral Plane

"In my culture, death is not the end. It's more of a stepping off point. You reach out with both hands to Bast and Sekhmet, they lead you into the green veld where... you can run forever."

- T'Challa

The Ancelstral Plane is a realm in which, according to Wakandan lore, the soul settles after death. For Black Panthers, it is where they can go to commune with their ancestors after ingesting the Heart-Shaped Herb.

King T'Chaka's Death
"It sounds peaceful." "My father though so. I am not my father."

- Natasha Romanoff and T'Challa

Following the death of T'Chaka, the King of Wakanda, Natasha Romanoff went to console his son, Prince T'Challa. He explained that, to Wakandans, death was not the end of a person's journey. Instead, they were brought by Bast and Sekhmet to the Ancestral Plane, where they would run through a green veld forever. Natasha stated that it sounded like a peaceful end, but T'Challa stated that it was a belief held by his father, but not him.

T'Chaka's Wisdom
"You are a good man, and it is hard for a good man to be king."

- T'Chaka

To be added

Trivia

 * In the comics, Necropolis is the Wakandan City of the Dead where Black Panthers are buried. T'Challa, after given the mantle 'King of the Dead' by Bast, was granted the strength, knowledge, and experience of all previous Black Panthers after visiting the city.