If you read a lot of spiritual books, you can become cut off from what they actually convey. Naming the simplest things may cause them to seem distant and complex, because you’re trying to comprehend direct experience with your mind.
This is why it’s important to practice.
Conversation
This doesn’t mean you shouldn’t read spiritual books. It means they can very easily turn into obstacles for your understanding if you only rely on them. I find that they’re of best use as inspiration and direction for finding out the same things yourself.