Does it Always Have to be Spoken?

I was at temple discussing a part of Buddha Dharma after a teaching. I was trying to express myself, but like I do quite often, pick words easier for people to understand coming from me than the correct word. We were discussing Buddha’s ultimate truth, which alone is a difficult one for anyone to fully comprehend. I may have said the wrong word, and the person I was talking to probably did not know my intention. But I have somewhat relaxed on being misunderstood as it comes with the territory of my brain injury. Everything is an appearance to our mind. I have noticed in long meditations that I am just what I have in my mind, and the minute I am able to clear it out ...I just exist. In fact, I even sometimes lose the attachment to my breath. But the thing that came to mind was if it is an ultimate truth why does it have to be spoken? If is truly an ultimate truth, then one should be able to be taught, by the pure intention of your teacher or guru. That is providing one in is the correct space both mentally and physically to receive this lesson or any others. In the past I have met realized monks, that at times have felt their pure intention but not being in the correct mental space did fully understand what they were trying to communicate. Nonetheless, I still was changed by the experience of their presence and it was done without any spoken words between us. In one instance years ago, I was blessed by a monk in an ancient Khmer site, and it took me over an hour to get back into my body. I was as empty as space and only now think it might have been a teaching. This helped to start me on my path when I returned. I visited a new friend, who suggested I meditate with him for an hour, having never done it. Surprisingly, I had carried the wish to do so, strongly in my heart and completed it to his and my total amazement. So I have heard that a prayer is a heartfelt wish, so was that monks blessing was a wish or a teaching?