"....[Rabbi Kook]taught that the essence of Judaism 'is the passion to overcome separatism, the severance of the human from God..."
As such, his teachings are not secular. Secularism is about that which is apart from religion and god. Secularists generally aren't interested in a religious interpretation of events, conditions, or beliefs. I'd really look forward to anything you have to post about the retreat. I'd just suggest that this isn't the forum for it. The Spirituality Forum would be ideal.