(quote from RealReality.org/Real_Faith_and_Reason_Vol_2_-_Scientia.pdf)

Anyone can know Jesus Christ. We know this because we know Him, and He reveals this fact to us. He reveals that whoever seeks Him finds Him. He continues to reveal more of Himself and His will to us. He leads us, corrects us, and purifies us, and we know many people who also know Him and are led by Him in the same way we are.

(end quote)