Jacob wrestled with God. We are called to do the same. Not physically, but spiritually and emotionally. We are called to bring our questions, doubts and frustrations to God instead of keeping them to ourselves. If we work them out together with Him our faith will be strengthened instead of weakened.
Genesis 32:28 Then he said, “Your name shall no longer be called Jacob, but Israel, for you have striven with God and with men, and have prevailed.”