The sacred seed-letter that symbolizes Buddha Avalokiteshvara, the Compassion Buddha. It is important to recognize that Avalokiteshvara and his seed-letter are the same nature, and in the Tantric meditation practice of Avalokiteshvara we imagine that he arises from this letter. By visualizing or reciting this seed-letter with strong faith and concentration we invoke the great power of this holy being and receive his blessings.