I obviously don’t know where you are in the Interior Castle, but I can assure you you’re definitely beyond the first chamber. Knowing what it’s like to be in the first chamber . . . it’s like blindness, not praying, not caring, not thinking about God, just thrown here and there by the cares and feelings of the world. It’s hardly in the spiritual life at all. You are spiritually mature though, especially in humility, and your love of God and His Mother makes it absolutely impossible you’re there. I don’t remember the book well enough to recall what’s in the second chamber, so I can’t comment on that much, but I bet you’re further than that too.
I read the book last Lent, and it was a life-changing experience for me. There are two really, really important lessons I took from it. There are others too that have stayed with me, but two really important ones.
The first is that we cannot come up with spiritual experiences ourselves through any special meditation, attentiveness or focusing of the mind. We cannot create that experience for ourselves. St. Teresa talks a lot about how the supernatural experiences just slam people from surprise and we cannot bring them to us or us to them. God just opens His storehouse at whatever time He pleases.
The second lesson I got from it is that what we really need to focus on is developing and practicing virtue. This is the pathway to that union with God. I think that for every single one of the mansions of the soul, she recommends practicing virtue. Virtue is the way to God, expressing love for Him through deeds, through putting aside ourselves and putting Him first in all things, or trying to. That’s the route to God, the true route of spiritual life, and humility is the most important virtue on this path.