Along with St Teresa of Avila, St John of the Cross is another of my favorite saints. In fact whenever I think of one, I tend to think of the other. They lived during the same time period and were friends in faith. St John helped St Teresa in the reform of the Carmelite order.
The reason St John of the Cross is one of my favorites is not so much because I understand him or identify with him, but precisely because I do not. I have not read much from this saint, but the little I have read always leaves me with a sense of wanting to grow more in .y spiritual life.
I recently read this of St John: "When you sincerely desire inspiration to the fullest of your being, read John. Entreat him to guide you! He awaits your request. This particular doctor has a heavenly gift to bestow favors upon those who prayerfully petition him because he is so richly endowed."