I started to read Italo Calvino's book "The Castle Of Crossed Destinies". A book in which the famous Italian author constructs short stories based on spreads made with the tarot model designed for the Visconti family, the result or the intention was to present stories that were not vehemently subject to the conductive and fixed line of the narrative cliché.
The result at the moment does not surprise me, since at the same time that he explains the story, he explains the tarot reading, which becomes a distraction rather than an element that attracts you even more to the story. I think he should have placed the tarot reading process at the bottom of the page and simply presented the story in a concrete way.
However, the experiment is interesting and allows to demonstrate how the use of tarot reading can generate certain curious narrative experiences, which apart from being a creative element endowed with historical symbols, it seems to me that it does not have a divination or destiny reading value, no, not at all. Just simple cardboard made in China.
In relation to the design of role-playing games, I use the Art Oracles: Creative & Life Inspiration from Great Artists as a starting point to inspire the creation of an adventure, through the suggestions or concepts the interests of the enemy, his abilities, desires and location were glimpsed, everything was added to make clear the presence of an apparently insignificant being, but that through certain twists of fate, was acquiring the methods to exterminate small groups of adventurers and thus be able to acquire power.
The process was natural to me and did not take too much time, in general I only used it as the beginning, the seed, because from the first ideas a lot more were emerging and it is a matter of logic to join the scattered elements to build something functional and interesting that is worth publishing.
I suggest the use of these tools, especially focused on narrative elements to build the personal agenda of the npc or bosses, so that they look more striking and full of internal conflicts. I do not think it is advisable that every element of the story or the character's background be controlled by the reading of the cards.
So one of the best things to do is to take this tool as a simple bag full of words with concepts about certain emotional aspects of life. In fact, now that I've said it that way, it would be interesting to do just that, fill a bag with words and that's it.