Some of us may interpret the High Priest (the Hierophant) as "orthodoxy": conform to what's the present norm and obtain the approval of those in power. I think the High Priest represents our own personal essence or soul. It's a card of mysteries.
What exactly is Ego? The ego is a collection of beliefs and past experiences that defines how a person interacts with others and with life.
Apparently it is quite common for us to see visions when we meditate, but is it a good thing or a bad thing? I had my first extremely vivid vision today, it looked like a dream but I knew I was seeing things with my eyes closed and I was completely awake.
As the moon's energy decreases and shadows form, it's a good time to turn our focus inward. When we start our inner development, we will discover things about ourselves which we are not comfortable with. And that is our shadow self, the "self" we hide away from others and maybe even from ourselves. The shadow aspects play a very influential part in our lives on our behaviours and ways of thinking.
Inner Orbit 