Liber Resh vel Helios consists of four solar invocations spaced out through the day: at dawn, at noon, at dusk, and at midnight. In The Confessions of Aleister Crowley, the author writes that Liber Resh allows advanced students to make contact with the spiritual energy of the sun and draw power from it. But I’ve found its basic, psychological benefits to be of greatest use: “The object of this practice is firstly to remind the aspirant at regular intervals of the Great Work.” It can remind you of how you’re progressing at any given moment of a day and, in terms of weeks and months, show you where you need improvement in your self-development.
If you also keep a daily magical journal, you can note down this practice in order to see when you’re on top of your game, so to speak, or when you’re slipping. Miss performing one of the four adorations, and you have an instant feedback mechanism for what’s going on in your day / week, magically and personally. If you regularly practice all four solar adorations daily and consistently throughout the week, you get a sense of your psycho-magical stability and, over time, a sense of how much ashe / chi / prana / inner power you have. Relate this to the moon phase, the sun phase, the weather, relevant events in the calendar, and things going on in your physical and emotional life, and you have great mini-system for magical self-evaluation.
I wish my teacher would have told me this when I was first starting out. All he said was, “This is a good thing to do. It puts you in harmony with the movement of the sun.” Then he gave me the instructions and some reading references and left me to it. 25 years later, I understand. But for a long time, I simply did it and thought, “I don’t feel anything. Is this pointless?” The only thing that kept me going was the fact that the rituals suggested by my teacher nearly always revealed themselves to me over time. It just took me about a decade to see the value in Liber Resh.
I don’t think that level of frustration should be necessary. If you come across this simple ritual in a book like Modern Magick or Magick Without Tears or in one of the more recent Golden Dawn-influenced systems of self-initiation, you might give up on it. It won’t give you the sort of energetic fireworks that, say, doing the Middle Pillar with the LBRP daily for a month would. Resh is a quiet, introspective ritual. If you start practicing it with that in mind, thinking of it more as a daily thermometer for your practice and development, you’ll probably feel less at a loss.
Lots of Crowley’s rituals are like this. You expect them to be one thing, but their inner reality is something else. In order to get to that unfoldment in your practice, you need to stick with them and make use of your magical diary. One day, a ritual will “click” for you and you’ll realize what’s going on. That, at least, is how it has worked for me. It takes time, lots of introspection, and sustained effort.
The Golden Dawn rituals are generally like this as well; though, they tend to be a bit more transparent. I can’t recommend Peregrin Wildoak’s By Names and Images strongly enough for helping students to see the energetic reality of these and, by extension, waking them up to the way they should think about the Thelemic rites and rituals as well.
The sacred geometry used in these workings is sometimes referred to as the “linear tradition” in magic and rightly so. But "linear" doesn't necessarily mean straightforward or self-evident. Forming a subjective synthesis with them in the spiritual life of the practitioner takes time, faith, diligence, a fair amount of study, and an open mind.
This is something of an implicit blind built into all the Victorian ceremonial lodge magic we’ve inherited and it’s why I have no sympathy for people willing to mock the basic rituals as unnecessary and overly embellished or (ironically) as too simple. If you have eyes to see and ears to hear, you will understand the value and use of such work. But in order to develop those perceptions, you need to put in some long-term effort. Hopefully, little notes like this post can encourage you to persevere on the path of understanding.