First, and foremost, please introduce yourself to the other members of this forum before starting a topic. You do it here:
Now, lets move on to your questions:
It’s a tricky question, indeed. I’m gonna use the spiders web analogy here, using fancy pictures to make it easier to comprehend:
Do you see the spider in the middle of it’s web? As an analogy, pretend that spider to represent the Core Essence of a deity, a God or a Goddess, King or Queen. The web itself represent all the masks and aspects of that particular deity. All of them is unique in it’s own ways, but they’re all a part of the Core Essence.
Let’s say you have a personal grudge with me, and we’re working with the same deity but different aspect of it. You start by planning and plotting with the deity, and whatever aspect that deity represent for you, it will vibrate to the center of the web, sending notifications to every aspect and masks it wears. The message is received, so it gets political with diplomatic interventions between several spirits, guides and aspects/masks of the deity we both work with. And let’s say they’re all came to conclusion to abort and dismiss your request. I’ll explain why it, theoretically, failed.
Politics and Diplomacy
With intervention from my spirit guides, spirit wife and the specific aspect of the deity I work with and probably from other spirits as well, they came to conclusion to dismiss your attacks. It caused a conflict of interest, so they made a better deal to satisfy everyone. Why do you think some people doesn’t get affected by curses? Politics.
There’s even cases were demons have refused to harm other magicians, even without explaining the reasons. It’s possibly because a conflict of interest with repercussions could occur if the demon agrees to harm that specific person. Or that other aspect/mask of the same demon have a personal interest of your enemy. It could even be in love or have merged or given rebirth to your target. Which basically means if the demon hurt your target, it inevitable hurt itself.
Of course, your aspect of the same demon could still go through with your request anyway, but there’s always options to why it might not go through with it.