I didn’t think my believing in Christ was based on my accepting of questionable relics as the guide. When he returns is when I was taught that we will see the face The Son Of God.
You are demonstrating the mistake I explained.
Something helpful, does not mean a necessary pre-condition.
But that's not to say that's the only time.
There are those alive, even now, who have seen His face. According to what I've heard, He seems to be showing His face to Muslims all over the world, lots of them, right now.
And there are those who lived with Him for 2 1/2 years, and saw His face every day, and yet did not believe.