Spectral forms approach the neophyte From Christian’s Histoire De La Magie

It was customary for the members of initiate bodies to accept candidates of only exceptional distinction. In both Greece and Egypt, the disciples were tested as to their knowledge of the arts and sciences, particularly geometry, astronomy, and music. Initiation was an honor bestowed for unusual merit and integrity. The ancient rule holds good to this day in most occult schools.

Manly P. Hall- Crata Repoa

Max Heindel - The Seven Days of Creation and the Four Great Initiations, ‘’The Rosicrucian Cosmo-Conception’’, 1909.

The incipient magician will confess his faith to a universal religion. He will find out that every religion has good points as well as bad ones. He will therefore keep the best of it for himself and ignore the weak points, which does not necessarily mean that he must profess a religion, but he shall express awe to each form of worship, for each religion has its proper principle of God, whether the point in question be Christianity, Buddhism, Islam or any other kind of religion. Fundamentally he may be faithful to his own religion. But he will not be satisfied with the official doctrines of his Church, and will try to penetrate deeper into god’s workshop. And such is the purpose of our initiation. According to the universal laws, the magician will form his own point of view about the universe which henceforth will be his true religion.
—  Franz Bardon (Initiation Into Hermetics)
We might say that the dream transforms the dreamer; that it possesses the ability to ‘initiate’, to bestow new meaning, to motivate new beginnings (Latin: initium – beginning), to permit our entrance (literally ‘en-trance’; Latin: inire init – to go in) to new orders of relation between ourselves and the ‘other’.
—  Andrew D. Chumbley, Mysticism: Initiation and Dream, Pg. 13