Most technically, it is veil that is placed between the conscious and subconscious portions of the mind, partitioning the two and making the latter relatively more “mystery filled” to the former. With the veil in place, the entity loses conscious awareness of much including its past incarnations, its objectives and plans for the present incarnation, and its innate selfhood as the One Infinite Creator. The veil is a third-density phenomenon causing the self to operate in what Ra refers to as a metaphysical darkness with only the light of a “tiny candle.” It generates the illusion that we recognize as separation in all of its forms.
The entity may penetrate the veil to access subconsciously stored information in a great variety of ways (including meditation, dreamwork, regressive hypnosis, etc.), but it is only through disciplined will and faith that the entity may penetrate the veil to such an extent that it experiences the illumination of deep self-discovery, which is to say, discovery of the self as the Creator. The development of this will and faith is one of the most important byproducts, if not goals of, the veil.
The existence of the veil helps to elucidate much about our present environment and the great variety and depth of confusion and pain that springs therefrom.