After finishing reading her Life, I am continuing with her The Way of Perfection which she wrote for her nuns under her charge. Here is a couple of important points that is good to know.
(1) Love: The love we have for others is to be perfect. It must not be affected by how attractive or unattractive the person we love is, how much affection we have for the person, or whether he or she is going to appreciate us or love us back. In other words, the love must be the pure, unconditional love of God. In this way, we remain free. (By the way, the more St. Teresa was persecuted by others, the stronger her love for her persecutors grew.)
(2) Detachment: Not only are we to be detached from all things of the world, we are to do so from ourselves. Humility and detachment always go together. This way, we become fearless of anyone.