Since the conception of magickal "initiations" and "attunements" in recent times, interest in them has quickly skyrocketed. Once a niche concept, initiations are now well-known and widely used.
The terms initiations and attunements are often conflated and used interchangeably. Putting linguistics aside, they have been used to refer to a way to gain direct access to a spirit's energies to work with, channel, use and do whatever you desire with.
In fact, initiations can be made for anything including groups of spirits, mantras, prayers, rituals, and whatever else you can think of.
Without needing to cut your teeth on any paradigm or practice, through an initiation you can simply call forth the energy and set it to work.
Through initiations, you are able to ask for help from the grandest of angels, the most powerful of demons, the most exalted of deities and even armies, groups and legions. You are able to state your will and their energy will get to work on enacting it. This energy isn't limited to spirits either: it can be used to call elements, rituals, concepts, mantras, prayers or quite literally anything else and set the energy behind them to work on enacting your will.
You need no materials or years of practice. All you need is the initiation and your chosen way of using it — the easiest being simply calling it and stating your request.
Surprisingly, even to users of initiations much remains unknown: the theory behind crafting them, practical steps to doing so, and an actionable and effective structure to use to do so has likely never been shared in such a simple and practical manner until now.