I feel it is necessary to clarify the status of magic from a Christian perspective; and specifically from a Romantic Christian perspective that sees human consciousness as having developed (evolved) through human history.
Necessary, because if we regard magic as (something like) the attainment of human will by supernatural (non-material) means; then magic is real, important; and may be white or black.
I define white magic as in accordance with God's will; that is, in harmony with ongoing divine creation.
White magic is done by loving alignment of an individual's will with Good...
Whereas black magic is the attempt to impose one's detached and personal will upon other persons, other beings, or the world generally.
Black magic can only be done with demonic assistance, and therefore (overall, eventually, inevitably) actually is done in pursuit of evil.
Black magic has not changed very much through history - it has always been possible, and apparently always follows the same 'Faustian' trajectory. Some person or group wants to impose their personal, selfish will upon the world; seeks to do so by supernatural means; and actually does so by means of employing demonic power.
The black magician believes he can control the demons (despite that they are supernaturally magical, and he is not); by means of some technology or bargain. But the whole thing is actually a demonic snare by which the demon comes to control the black magician - who is therefore either a dupe, servant or slave to the Satanic agenda.
And the end result is the same - the unrepentant black magician is damned; and apparently suffers more than the usual torments of the damned, for his presumption.
A somewhat conjectural history of white magic (which, nonetheless, I believe is broadly correct) has it that in our pre-historical hunter-gatherer past, God-aligned white magic was simply part of life.
The individual human's will was neither detached from the human group-will and the group-destiny; and was immersed-in the divine will and having a mostly un-conscious direct knowledge of divine destiny.
Apparently, some individuals had a greater aptitude (what we now term the 'shamans') but the essential activity was universal: everybody did their bit, and contributed magically in some way - spontaneously and mostly unconsciously.
As human consciousness developed, and humans became more free-agents, as in the Ancient Egyptian empire; this spontaneous knowledge and alignment with the divine was also lost.
For the Pharaoh and priest-magicians of Egypt, magic required elaborately-selected and -initiated priests; who employed complex systems of ritual, symbol and many other 'technologies' (such as divination) to align their wills with the divine.
These were overwhelmingly white magicians, who used the supernatural to benefit the society rather than themselves; and who (under the semi-divine Pharaohs) guided the society in harmony with God's destiny - and were able to accomplish (by magic instead of technology) advanced material achievements that still astonish the world.
The development of consciousness continued, and as well as becoming more free, more of an agent; the individual Man's will became more separate from the divine will and the community will alike.
As a result, white magic became more difficult, less powerful - and Men (detached from the divine) became more prone to black magic.
The (all-but) end of the era of strong white magic was at the start of the modern era (Renaissance - 15th and 16th centuries in Europe); with the last of the white magicians (e.g. Paracelsus, John Dee and the Alchemists most of whom had ambivalent reputations or kept their activities secret (like Newton, Hooke and Ashmole).
This darkening of magic was probably due to contamination of motive by the magician's more-detached personal will. This was the era when the Faust legend of black magic became archetypal; and the negative views of witches (motivated by spite, desiring to harm individuals and society) also became more dominant.
In the fully modern era, white magic became almost impossible.
Attempts to revive it in the 19th century, and increasingly through the twentieth century, were only partially successful (skeptical outsiders saw nothing).
The practitioners found that the power and scope of magic was dwindling almost to nothing; and eventually was almost wholly limited to the psychological realm of the practitioners themselves.
For example; in the last 19th and early 20th century magical rituals could change the consciousness of participants and sometimes produce quasi-objective 'manifestations' - but by the late twentieth century this power was greatly reduced, and ritual magic work was all-but merged with imagination (art, narrative, music and drama) as technologies of consciousness.
So, where from here? The way ahead to a resurgence of white magic was explained (albeit not implemented) by Rudolf Steiner and his 'disciple' Owen Barfield.
Group magical work is rare, weak - and at present illegal (because groups are illegal for the masses --- although not among the Establishment, who continue to perform their black magic in groups); so nearly all modern white magic must be individual.
Now that human consciousness is spontaneously and naturally detached from the divine; white magic requires conscious choice.
White magic now does not attempt to influence by will the appearances of the world, or the behaviours of persons. Furthermore, it happens in thinking rather than (as in the past) by perception.
This, because the white magician is no longer immersed in the divine - he must meet the divine halfway.
Indeed, white magic needs to become detached from the individual's will; instead the individual's will needs to be aligned to God by conscious, chosen effort.
In sum: White magic now should not try to operate at the level of changing God's primary creation - we should not be looking to change our sensorial-perceptions of reality.
We should not be motivated by a desire to impose our will; nor to attain any particular end-result in this world (such as a change in human behaviour, or society, or weather).
Instead, white magicians need to attain (and this will, of course, be temporary and usually very partial) alignment of their own conscious thinking with God's ongoing creation.
And if this is attained then white magic will 'Just Happen'.
What we will then be doing is contributing to God's creation; and contributing from our own unique divine Real Self.
We will therefore be contributing some-thing (some Good) that nobody else could have contributed.
We will be adding to the total sum of eternal actuality; adding some-little-thing from our own small corner of that actuality.
Is this worth the effort? It may be. Because sometimes even the littlest contributions turn-out to be vital to the Big Picture.