"Lucifer" literally means "The bringer of Light" allegorically the ruler of multiple solar systems around and including ours, and hierarchically above Satan, who was God's chosen ruler for this world.

As far as I understand it, the Luciferan revolution was a good and necessary thing for the evolution of the human mind, and not actually evil. It is Satan's horrors that one should fear, and not Lucifer, who wished only to gift us with higher reasoning and mental capabilities.

Satan is truly evil, but not Lucifer. Now, people often use these two figures interchangeably and this is a very misguided mistake. They are as different as anything ever was.

In more detail as they make themselves known again to me, Lucifer's plan was to distance somewhat Man from the Light of the divine, in order for Man to develop his own capacity for Intelligence, something he could never achieve if the Light of "God" is constantly guiding him. This guidance is called "upward evolution" through the hierarchies of the cosmic orders of intelligences. He wished to gift us with "downward evolution" which could replace millions of years of upward evolution with a few decades of downward evolution.

It was risky but there is so much to be gained!

Satan, seeing that the plan was to take some distance from the light, sought to bring about absolute darkness in the minds of men and in general on the Earth. Enslaving Man, reducing his life to an experience of torture, suffering, heartbreak and pain was his plan. Why? Because the energies that are within us are actually very pure, so BLEEDING us from it and feeding off it is very delicious for his order of (lower) entities.

So the difference is absolute. Does this guy mean actual Lucifer? Or does he mean Satan and uses Lucifer interchangeably? Of course he would know the difference, but would he write the plain truth down, or would he not disinform the letter at least to some degree? Yeah probably the latter and he used "Lucifer" for meaning "Satan". Maybe.