This is a mostly frozen copy of the Minetest forums through 2017. If you know phpBB3 and would like to host any G-rated forum here, you can email: me@minetest.org
If the email doesn't work, find out who's taken over Final Minetest from OldCoder and email them to get write access or an admin account.
I should have set this up years ago. But it's no tale of woe.
Whether the temperature is high or low, regardless of cold winds blow,
away we go like Edgar Allan Poe, on now with the show. BTW rhymes are welcome.
If you are a singleplayer, the command is /grant singleplayer fly and this will grant you the flying privilege. Other wise, the command is /grant {whatever your character name is} fly for a server game. Your could also do the /giveme default:pick_wood command to give you a wooden pickaxe to tunnel some steps to the surface of the hole.
EDIT: {A change in one words choice.} And x, y, z means your coordinates on the map. The y coordinate is the up and down position while x and z are the left/right and forward/backward position depending on which way you are looking. The 0, 10, 0 coordinates means the center of the map and 10 blocks up in the sky. At least hopefully in the sky and not inside a mountain. :)