The Happy Squirrel
When they say this, it's more to point out that the reader is reading things into the cards that makes the cards seem to say what they hope they will. The cards can be trusted. It's ourselves and our own biases, prejudices, and fantasies that we have to get through to see what the real message in the spread is.
THIS.
This is why a good reader is a gem. They read. They don't lecture. They don't judge. They don't project their own stuff onto the cards then to us. A little bit like a good shrink. In fact, a lot like it.
But shrinks received a lot of training about transference and counter-transference. Tarot readers often are not. Which is why I appreciate many readers who are aware of this and make this part of their development. Yoav Ben Dov's book is especially brilliant in addressing this. So so important.