Christ in You is the Greatest Truth a Human is to Ever Know
Col 1:27 To them God chose to make known
how great among the Gentiles are the riches of the glory of this mystery, which is Christ in you, the hope of glory.
As only the Father can reveal to us the Son, only the Son can reveal to us the Father.
Luke 10:22 All things are delivered to me of my Father: and no man knoweth who the Son is, but the Father; and who the Father is, but the Son, and he to whom the Son will reveal him