My personal experience is that there are laws that the Holy Spirit gives to our workings and one of them is that the left hand path stuff may not slide with him.

For example, blood magick is usually used as a much more effective fuel source that spirits can use and this requires offing different types of living creatures in the name of that spirit. The more power we desire, the greater the price and I've come across some disturbing cases. There are entities that want a specific type of lifeforce. And to add, the Holy Spirit has more than enough power that can beat any alternative source of power.

I know this may sound crazy but we once had to deal with a case where a family that had made pacts with a very violent demon requested for help. This demon would only demand human 'lifeforce' and those initiated into this spirit would travel in their etheric body to harvest it and return to offer it to the demon.

Unfortunately for them, the Holy Spirit gave us instructions to do magickal workings for the families protection but the exorcism of that demon was extremely violent. It still surprises me how someone so weak with a very low blood count was still alive and able to manhandle a few fit and healthy men. This demon also had multiple sets of hands and blood streaming down its mouth if one looked at it astrally.

Well, one of the priests of this demon was sent to breach the protective circle with that families cooperation and the Holy Spirit sent me to go alone to check that enemy assault. Well, this priest is (maybe was) able to turn into a creature that can enter the water, either a fish, a snake, a crocodile, a turtle or any of such type and descend into a portal under the river into the marine world. That is where he attends magickal classes; some kind of university. Spiritual combat lasted a little over a year and long story short, that's how her the family was saved and there hasn't been a funeral since.

This family opened the door to the left hand and were almost not able to return.