Glory is the name for the prestige system in Midas' Gold Plus. It allows use of the second main currency in the game: Diamonds. The amount of Diamonds that you will gain on your next temple or gem offer is listed under "Blessed Diamonds". To claim the Diamonds, you will need to sacrifice your gold coins, upgrades, and buildings. (as well as their levels and goals) Everything else will stay. (Worth it!) You can also use 30 red gems to keep your progress. (Not recommended!)
At the start of the game, you need to gather 9.77Qa(9.77e15) gold to unlock.
Formula: Blessed Diamonds = (All Time Gold/5e11)^0.43 - current diamonds
Using Diamonds[]
After a Prestige, any Blessed Diamonds are converted to Diamonds. These can be spent on Artifacts, Researches, and new Champions. All Diamonds currently active give a boost to building profits, starting at 1% per Diamond. This percentage increases as you perform the "Diamonds Value" University research and "Sappers' Guild" upgrade at Midaeum. It can also be increased by Arena Rewards.
You do not lose any Diamonds you spend. Spent Diamonds are converted back to Blessed Diamonds. However, you do lose the building profits boost for the current run. For this reason, it is normal to Prestige just after a large Diamond investment.
When to Prestige[]
The main question asked in chat is "When should I Prestige?" This is largely down to personal choice.
Your first reset can be around 80 to 100 Diamonds. Resetting at 100 Diamonds will give you a 100% boost to building profits which, depending on your play style, could double the speed of the game.
After that, many people like to wait until they have the same number of Blessed Diamonds as Diamonds before a Prestige (doubling). However, hitting a wall, a big Diamond spend, or boredom are all valid reasons to go for your next Prestige.