1 Corinthians 13:12 says now we see dimly, but then we shall see how?

Answer: Face to face

Now we see a dim reflection (KJV: through a glass, darkly), but then face to face; now we know in part, then fully.

“Now we see but a dim reflection as in a mirror; then we shall see face to face. Now I know in part; then I shall know fully, even as I am fully known.”— 1 Corinthians 13:12 (BSB)