Definitions for "Yidam"
(yi dam) t. A personal diety and the root of accomplishment among the Three Roots. a Tibetan term meaning a male or female symbolic deity required for certain meditational purposes.
bodhisattva or other "deity" assigned to a Vajrayana monk by his guru as his personal guide and protector. Once established, this link will last the monk's lifetime, and will help him work towards attaining enlightenment.
vow, oath, covenant” – a tutelary deity.
a supreme connection that is made through the mind, and Chenrezig is capable of facilitating that connection
a "pure appearance," a vision of purity