Today is the Feast day of Teresa of Avila. This is a famous statue of Teresa called Teresa in Ecstasy.
If you have a real interest in the spiritual life and have never read Interior Castle I would encourage you to give it a try.
I will also add the caveat that Teresa didn't really want to write this wonderful book, and it shows in the end product. It is the most wonderfully meandering narrative. If you can stay with her though you are rewarded with a journey through the interior life to full communion with God.
Teresa was a Saint, and a Dr. of the Church, but she was also wonderfully human. She was a very adamant proponent of praying exactly where one is to God, with boldness and candor. One of my favorite of her prayers is: "If this is the way You treat your friends, it is no wonder You have so few of them."