You beneficially doubt that thoughts could be true. What does that mean? Because thoughts are always representations of experiential reality, what is given. So you're going down the road and you're going this way towards the town, this way, to the name of that town. You would never confuse the sign with the town. And yet you do when you take spiritual teaching or anything else to be true. When you take thoughts to be true, they are pointers just like the sign. And they are useful if they are well formed. If they weren't, I wouldn't be talking right now. Or at any point in the past or future. Any other now. So the thoughts are useful tools when well formed. But they don't constitute truth in any way and never ever could. The problem becomes clear between your experience and your interpretation of experience. Doubt your interpretation of experience but only all of it. And never doubt your experience itself. There is no benefit to that.