The Ephemeral are a group of ancient entities that are far beyond any level entity that would willingly be conjured for one companion. These entities have agreed that they wish to help humans on this plane, but would prefer to share the attention with multiple individuals, as their strength is so great they have no issues granting energy and companionship to many at one time. Their attentions will never seem to be elsewhere due to the dominant nature of their energy. The Ephemeral are extremely potent, wise, and ancient beings who seek to deliver the gift of their knowledge and wisdom to the humans of this plane, and also to help them with understanding themselves and the world around them.
The nature of this binding allows us to connect individuals to highly potent magickal mentors for a much lesser price, and also allows for several companions to compare experiences with their Ephemeral mentor if they choose to. You are welcome to have more than one Ephemeral mentor, and offerings/libations are often encouraged.
These bindings are performed in a way such that your binding or magickal field cannot be tampered with by another practitioner with an Ephemeral link. These conjurings are just as private and energetically specific as personal custom-conjure bindings.
The two tiers reference the strength and type of energetic binding. The Ephemeral entity will offer a tether of communicatory 'calling card' energy, much like any other conjuring, but this is the difference between the two:
Vibrant: This energy comes and goes as a daily supplement in life, an empowerment that is more quiet, but constant, and comes forth in big bursts when needed. Entity can be contacted at any time, however.
Vital: This energy is a constant vibration -- this entity's presence is with you fairly consistently, and their lessons, teachings, and wisdom are constantly with you. This is a much more active and involved binding, so you will be working very closely with this mentor.
The Ephemeral Master Key is a vessel that connects you to all of the Ephemeral, be they past, present, or future. Master Keys are inclusive to those listed in future listings as well unless otherwise stated by the listing. The Master Key connects to their hub where they can all communicate with you in tandem, or on a one-by-one basis as you call them forward by name. They will all interact with you and help you as needed.