Looking at vanity would prevent you from seeking Jesus with all of your heart.
He that prays in an unknown language speaks not to men but to God.
Jesus Christ,the savior of the world prayed this prayer for one of his disciples(Peter).
It should be the ultimate goal of every believer to love the Lord our God with all of our heart,soul and mind.All means all.
It should be the topmost desire of every man to know Christ,He is our savior and deliver.Knowing Christ and seeking Him should be our priority.