You may have heard that you should stay alert because we need more lerts. It is equally important that you should be aghast at all times. We need more ghasts!
I am not a Minecraft player but I found this:
https://en.wiktionary.org/wiki/ghast
You actually have a wide set of choices of things to be aghast about. I read that wilderness conservationists are aghast about re-introducing wolves into Isle Royale National Park in Lake Superior. If that doesn't spark your ghasting engines, maybe learning about the chapter in the Bad Food Bible by medical researcher Aaron Carroll promoting the idea that artificial sweeteners in sodas aren't so bad will ghastify you.
There are many advocates and opposers you can join. Look at the news, local, state, national, planet or just the political and social news. Or, try religious or art news.
If you are looking to increase your ghastification, thinking about the way you have let yourself go, or about America's debt may give you the ghast you need. Just now, the price of ghast is low so this is an economical time to load up on ghast.