As you pray in other tongues the Holy Spirit searches your heart in order to intercede for your weaknesses.

Romans 8:26-27 Likewise the Spirit also helps in our weaknesses. For we do not know what we should pray for as we ought, but the Spirit Himself makes intercession for us with groanings which cannot be uttered. 27 Now He who searches the hearts knows what the mind of the Spirit is, because He makes intercession for the saints according to the will of God.
Spiritual matters can never be understood with your carnal understanding. We all have issues and weaknesses. The wisdom of our flesh and this world deceive us. This wisdom seems right but it produces death. The carnal wisdom always blames others for your own shortcomings. It justifies why you have a right get even or teach someone a lesson. However this deceived wisdom only produces death and sorrow in our lives. The real problem is never with others but it is always in your own heart. You misery is coming from your own weaknesses and issues. When you pray in other tongues the Holy Spirit searches your heart. He finds you weakness then He reveals it to you. Once the root of your weakness or issue is revealed you can then take responsibility for it and either repent or forgive. Sometime you may have to forgive yourself. This is a tremendous tool in your spiritual growth. I encourage you to pray in tongues always.
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