ignorance: Sanskrit: avidya. T. Ma-rigpa
initiation: The formalized permission and introduction to the practice of deity yoga. There are three main types: Empowerment (Tib., Wang-kur); Blessing (Tib., Jin-lob); Permission (Tib. Je-nang). When pertaining to empowerment, initiation means one must enter directly into the knowledge, the immediate experience. This can be either a direct, oral or symbolic tranmission or a combination. Initiation can also refer to an intellectual introduction to a meaningful field of study.
insight meditation Sanskrit: Vipashyana. T: lha-tong. Meditation that develops insight into the nature of mind. The other main type of meditation is shamatha (T. zhi-ne) meditation.