This is an article by a fellow named Bodhipaksa who runs the site www.wildmind.org
"Some people evidently regard Avalokiteshvara, Tara, etc., as actually existing entities, and in fact in Tibetan Buddhism they’ve been coming to blows over whether one of these figures is in fact a force of good or otherwise. But to me they are symbolic archetypes through which experiences of compassion, wisdom, etc., can manifest themselves to us. To give a mild flavor of this, psychology experiments have shown that if someone is asked to think about a professor before they take a quiz, they perform better. The idea of a professor seems to help people get in touch with their own intelligence. Similarly, I believe, the archetypal bodhisattvas and Buddhas can help us get in touch with our own wisdom and compassion.
I’ve had bodhisattvas appear to me in my dreams, but I don’t take that as a “visitation” from a actually existing entity. I’ve even had “communication” from bodhisattvas, but again I take that as being one part of my brain communicating with another through an imagined image and voice.
As Roshi Bernie Glassman says, in Infinite Circle: Teachings in Zen, “Avalokitesvara Bodhisattva is the manifestation, or embodiment, of both prajna wisdom and compassion. Who is this Avalokitesvara Bodhisattva? It is nothing other than us, it is nothing other than who we intrinsically are … We must realize that Avalokitesvara is not separate — it’s us!”
Any thoughts? Do you agree with his assessment?