According to the Will of God, Part 2, (Romans 8)

The Spirit helps our weaknesses, for when we don’t know what to pray for correctly, the Holy Spirit Himself makes intercession on our behalf, with groanings that cannot be uttered! There comes a time when the Spirit within us, who is transforming us, helps us! In v27, ‘He that searches the hearts, knows the mind of the Spirit!’ Here is the direct involvement and action of Jesus Himself, who searches our hearts, and knows our hearts, and at the same time, He knows and understands the mind of the Holy Spirit! Do you understand how powerful this is? Christ knows our thoughts, knows our desires, and at the same time He knows the desire and will of the Holy Spirit!