I have for a long time been been confused and dismayed that, although our sources -- including kabbalistic ones -- acknowledge frequently, emphatically, and without limitation that לית מחשבה תפיסא בך כלל -- "no thought can grasp [Him] at all," they nonetheless purport to grasp Him, sometimes at the highest levels.
I dare not post the examples that come to mind out of respect for these sources and shame at my own lack of understanding. They are found very frequently, however, in classical texts including Zohar and chassidus.
I understand that this daring and beautiful thing -- to presume we can understand G-d, a little -- is the basis for our whole religion. I understand that along with fear of G-d, we are supposed to have a firm belief that He deals in this world, and has imparted a shadow of His wisdom in the minds of the best people. Still, I am often stunned at the amount of technical detail with which these sources presume they can describe G-d, even in such basic senses as the number of His attributes. I know the answer is that I am not a prophet, so it doesn't make sense to me, and yet it is. --Yet belief in our prophets' unlimited access to Divinity is feels dangerous when one sees how many people in the wider world claim and believe they have prophecy and are entirely, treacherously mistaken.