Traditionally, and universally, shamans exist to meditate between heaven and earth, to mediate between human'\s and nature with the ancestors and spiritual overseers of the heavens, devas or angels. So shamans in their higher forms see in visions and travel in their subtle or dream bodies to the inner worlds, the mid-world and higher heaven to learn, intermediate, and bring down or back knowledge and energy for our collective work on earth.
Crows have, in the animal world, somewhat similar functions, given by the Creator.
Such abilities of the crow are reported by seers, shamans or mystics. The ability to see "above" - and below - and to travel to the inner worlds, those of the angelic and ancestral worlds. This is why they need and have, as part of their purpose, smart little brains with deep nature intelligence, so much so they are some of the most intelligent animals on earth, and have immense multi-step problem solving abilities, as science has demonstrated.
They are conduits.
We can think of them as a supply line, or an electrical line, a fiber optic line. Or better, a messenger, like the mail person delivering the mail. The mail man or woman may deliver the most pertinent, important, even critical message; but, not know the content of the message in the envelope, or the purpose of what is in a package, such as a "healing ointment." Or, the crow, like a porter at a door, a door into our inner consciousness and worlds, may announce the coming or presence of a "guest", inner or outer, or the visitation by an important loved one, deceased or living, dreaming.
Or, maybe, like Aumakuas may do, announce the inner visitation of a greater spiritual guardian of a land or place.
Yet, the crow in the hands of, or as a carrier of - a "vehicle"so to speak - of a spiritual guardian, a true shaman or deva-angelic being, can be infused with even greater wisdom, knowledge and power than some or many of its peers. (More about this later, hopefully in other stories, and the role of the Hawaiian Aumakua knowledge, and yogic knowledge of such things).
I recall a story, a most powerful experience when my most prominent visiting crow - a messenger crow, who often visits our home and land - kept cawing, distracting me with a repetitious caw, which droned on and on, while I attempted a restful meditation. Finally, partly of frustration perhaps, or from an inner urge of soul, I decided to listen, and I realized he was delivering a message, or announcing something I was not aware of, so I went deep inside.
I let myself be pulled into his direction, inwardly, and outwardly in his direction. The subtle energies of my body and consciousness stretching out through the rooms of the house and into the woods of the front yard, where the crow sat in a pine tree.
There near the crow, in massive soft-energy form and now in my presence was my deceased - from this earth - companion Golden Retriever Andy, who had "returned home". He came back to the place he was raised, nurtured, lived and served most of his life - to our land, his land and house, our place, and came to be in my presence, our presence, to visit, and to share his inner light and joy of his life in this place, with us and with this world.