There is even a thing called "spiritual intelligence"! The closest intelligence, to cover almost every, other intelligence is called "Awareness" i.e. the ability to notice the things around you, and respond to it. That is why people say that reading is good. Why? Because you are expanding your awareness by noticing other people's info/exp, as well as your own. With this you can gather other exp/info and try to mix them in order to make a new exp/info.