Lewis also spoke about how he'd watched his son over the last 28 years ... adding, "the referees thought I was crazy running up and down the sideline."
Lewis' good friend, Dallas Cowboys legend Michael Irvin, was also in attendance ... and he said after the ceremony his "heart bleeds" for Ray and the Lewis family.
"NO FATHER should ever have to bury his son!" Irvin said on his social media page. "There is NOT anything, anyone can say to ease this depth of pain. Just know this MY BROTHER, we love you and God has you.