The Cube Of The Depths is an artifact of great power, and it stops the person who controls it from ever going insane (Which is useful in modern times.) but because of the difficulty of obtaining the cube of the depths, there are various other sacred cubes that deities can provide you with. They all also tend to have certain kinds of unique benefits and attributes. For example, an energy cube from the god of the moon helps your spiritual side. One from The Jade Chairman makes you more able to radicalize others, and one from The Rose Bunny helps you in your love life. Energy cubes can be formed by any deity, and if the deity you work with is unfamiliar with the concept of energy cubes, you can meditate on their energy and create one with their energies. It will appear as a normal energy cube at first, but over time you will see what attributes, colors, patterns, or symbology it ends up with.
If you notice that some new gods or ancestor spirits give you energy cubes that are not overtly distinct or not as elaborate as the higher gods, it is because their energy is not unique from others. For this reason the sigil of the new gods is nine repeated squares. They’re not identical cubes, but you can tell the energy is not as distinctive as ascended gods or higher gods. The King of heaven can provide you with a celestial energy cube, but it may not be for everyone as it can be overwhelming. If you want a cube that is the most similar to the actual Cube Of The Depths, you can channel it from the energies of The God Of Fear And Hunger.
Ascetic Lavenderists can also benefit from energy cubes even if they are not given by deities. Besides Nui’s energy cube, there are cubes for the energies of meditation, asceticism, mastery, moksha, and even nirvana. The energy of chakras can also be used to make energy cubes but these are only useful for adjusting or clearing your own chakras. It is redundant otherwise because you already have those energies. Reiki energies are very good for the purpose of energy cubes.
To make an energy cube, simply put out your hand and envision a floating cube in it. Charge it with any mantra, meditation, or chant that you want. You can also direct the energy of a deity towards it. Absorb it back into your aura and let it sit. It is now part of you and will begin influencing your life from energy.