Custom Blood Magic: Ritual

Gates of Heaven (Advanced Dur-An-Ki Ritual)
This Dur-An-Ki ritual allows the ashipu to create a pocket realm within the umbra to use as a haven or place for others to gather. Once cast, the Sorcerer becomes the permanent owner of this pocket realm and may shape it to be in any form they desire. The form this pocket dimension takes depends on the personal desires and whims of the Ashipu. Some create lavish and expanding estates, and others create grand sprawling temples. Regardless of what form their pocket dimension takes, they all have the same set of rules. The sun never rises here, though time passes normally as it does on earth. Only those the ashipu want may enter and they can eject any who would dare trespass. It is within this pocket dimension the Ashipu is the true master. 
To cast this ritual the Ashipu must first ascend the Ladder of Heaven and petition their patron deity to offer a part of their heaven for their own. Should they agree, the Ashipu must gather religious significant relics to their faith of some age and importance. The amount varies between the god's requirements but usually no less than three. Once gathered the Ashipu performs this 8 hour ritual in a secluded area, they offer their blood and religious relics to their gods to connect heaven and earth. These eight hours are spent in prayer and blood sacrifice. Once completed the first rift to their realm is opened before them.
System: A character may only ever have one use of this ritual active at a time and once cast it is permanent until there is no blood left to sustain it. While the pocket dimension may take any shape the player and storyteller agree on; there are several rules in place regardless of what form it may take.  ∙ The sun never rises here; it is eternally night.
∙ When the Ashipu wishes to enter or allow others to enter they must make some form of key that allows entry. What form this key takes is up to the Ashipu, but regardless of that; to access the pocket dimension requires 1 minute of uninterrupted action to use the key and access the realm and costs one Blood Trait. This may not be sped up in any way. If they stop for any reason or are attacked, they must start over to be able to access the realm.
∙ The Ashipu is automatically aware of any intruders and may make a contested Willpower challenge to halt their entry. 
∙ Intruders must first locate the pocket realm to try to break in and have an ability to step into the umbra. Those that do must make a static Gnosis challenge at difficulty 10. If the creature does not have Gnosis it is a static willpower challenge at difficulty 10. 
∙ The Ashipu must maintain an altar or shrine in their pocket realm that must be fed one Blood Trait a week to sustain it,