If I have discovered the truth, will I never be frustrated?

As per my experience, discovery of truth leaves no room for frustration. This is because man remains tensed because of matters of the world. But if he finds the truth which next to God is truth, his relation with God is established and then he starts receiving divine succor and inspiration. It is important to note that this is not applicable for self-proclaimed truth. Only that which is truth next to God is what attaches you to God.