I should start by outlining the key themes in his course. Mysticism in Christian theology generally deals with the experience of the divine. Crainic's approach might combine Orthodox Christian mysticism with some nationalist or political ideas. He might view mysticism as a means to transcend the material world and achieve union with God, which could be linked to the Iron Guard's goal of uniting Romania under a nationalist agenda.

In each section, elaborate on how his mysticism is integrated with Romanian national identity and the Iron Guard's ideology. Address whether his work is seen as a genuine theological contribution or a tool for political propaganda. Also, discuss the impact and reception of his work within Orthodox Christianity and Romanian politics.

Potential challenges: Ensuring that the essay accurately represents Crainic's views without conflating them with the more extreme policies or actions of the Iron Guard, which committed atrocities during the Holocaust. It's important to distinguish between his theological writings and the political movement's actions, even if there's ideological overlap.

I need to explore his influence. How did he integrate Eastern Orthodox mysticism with his political views? Maybe he emphasized the spiritual revival of the nation as part of Romania's destiny. Also, what's the structure of his work? Is it a systematic treatise, or more of a series of lectures with practical elements?

Another angle is the theological sources he drew upon. Did he reference classical mystics like the Eastern Orthodox ones—Ephrem the Syrian, Symeon the New Theologian—or maybe the Western mystics like Meister Eckhart? Crainic's work as a liturgist might involve the liturgy as a mystical experience, connecting the sacraments to the spiritual life.

I should also look into historical context. The early 20th century in Romania was a time of political upheaval, with the Iron Guard gaining traction. Crainic's courses might have been part of the ideological training for members of the movement. His ideas could have provided a spiritual or moral justification for the Guard's activities.

I should also touch on the concept of the "mystical body of Christ," which in some Christian theologies refers to the Church. If Crainic applied this to the Romanian nation, it could mean viewing the nation as the mystical body requiring purification and spiritual unity.

I need to check if there are secondary sources or analyses of Crainic's mysticism. Since he's a lesser-known figure compared to Eastern Orthodox theologians like Lossky or Bulgakov, there might not be as much literature. Maybe his work is more influential within specific Romanian contexts.