We learn that we are perfected in our weaknesses - that God isn’t just present in them, but that He is working in them. He says “My grace is all you need. My power works best in weakness.” 2 Cor 12:9
We also learn about the power of our testimonies to help others. If they don’t see our humanity, our weaknesses and vulnerability, then they might not feel like Jesus can love and save them too. When they see His strength in our weaknesses and His healing in our stories, then they can have hope that He will do it for them too…