Hope you don't mind I'd take a little side path, talking about Crow and her shadow.
There is a medicine story that tells of Crow's fascination with her own shadow.
She kept looking at it, scratching it, pecking at it, until her shadow woke up and became alive.
Then Crow's shadow ate her. Crow is Dead Crow now.
Dead Crow is the Left-Handed Guarding. If you look deeply into Crow's eye, you will have found the gateway to the supernatural. Crow knows the unknowable mysteries of creation and is the keeper of all sacred law.
Since Crow is the keeper of Sacred Law, Crow can bend the laws of the physical universe and "shape shift."
This ability is rare and unique. Few adepts exist in today's world, and fewer still have mastered Crow's art of shape shifting. This art includes doubling, or being in two places at one time consciously; taking on another physical form, and becoming the "fly on the wall" to observe what is happening far away. Human law is not the same as Sacred Law.
All sacred texts are under the protection of Crow. Creator's Book of Laws or Book of Seals is bound in Crow feathers.
Crow feathers tell of spirit made flesh. Crow is also the protector of the "ogallah" or ancient records.
More so than any other medicine, Crow sees that the physical world and even the spiritual world, as humanity interprets them, are an illusion. There are billions of worlds. There are an infinitude of creatures. Great Spirit is with all.
If an individual obeys Crow's perfect laws as given by the Creator, then at death, he or she dies a Good Medicine death - going on to the next incarnation with a clear memory of his or her past.
Remember that Crow looks at the world with first one eye, and then the other cross-eyed.
In the Mayan culture, cross-eyeds had the privilege and duty of looking into the future.
You must put aside your fear of being a voice in the wilderness and "caw" the shots as you see them.
* Source: Jamie Sams and David Carson. Medicine Cards.