I can't help but picturing as a Zen monk. He is just hanging out (no pun intended) in there. His knowledge is that of his inner self. Just like La Papesse, who holds all the secrets and knowledge in her book of flesh, Le Pendu has an equal ammount of knowledge and secrets in his inner self.
According to Castaneda's books, back in the dawn of man, we all were in such state of mental silence. And, in that silence, we knew everything. But, being silent, this is a knowledge that can't be expressed with words. So when people started to rationalize and try to think of or explain the things they knew, the knowledge started to fade. Nowadays, we can't conceive the concept of having our mind void of thoughts if we're not dead or sleeping. He calls that empty state "the silent knowledge". Now, the concept of clearing your mind from all thought and word is no strange for doctrines like Zen/Buddhism, Sufism or Taoism. So it's sort of echoed in there.
there's something sacred about that silence. And I'm sure that Le Pendu is
just there to, like in the Depeche Mode song, enjoy the silence.
I appreciate this vision of the Hanged Man. His mind is upside down, not towards the flowers in the trees but towards the roots below the tree trunks. He can do nothing with his hands, usually sent into action by the mind's intention. The crossed leg suggests prayer or meditation, not logical mental grasping and controlling. The blue hair and blue over the heart is reflection, not action, resignation of all ambition. The Hanged Man is the patient stillnessing of the intellect, thought as calyx or hollow space yet to flower, waiting to be moved. No agitation.