Zen is a spiritual challenge to live life with awareness and focus. It is not a religion but can be used as a Way to practice any religion. It is about training oneself in mindful awareness during the process of life and moving more towards enlightenment. Words can point to it, but living with Zen can manifest it in awareness.
The unconscious is unseen, yet influences consciousness. I need to realize that not everything can be ordered and make way for a bit of chaos. Zen tends to create such dilemmas. This is OK. How else could awareness develop?