Hmmmmm....where to go with this!? Well, kundalini isn't a demon, that much I can say for certain. As for fire and danger, perhaps so. I'm curious, what is your opinion based on? Personal experience? Something you read in the Bible? Do you believe it just because you read it? Are you in the Pat Robertson camp of thinking that yoga itself is the work of the devil? If so, I can assure you that any conversation between you and I will be utterly pointless.

I've done a lot of research on kundalini and had my fair share of spiritual experiences, and it is the life force energy. It is the energy of the Goddess. Most spiritual traditions utterly revile the Goddess energy, and in fact think that it is a demon or the devil, because they fear it. Kundalini is also the Christ energy, imo. Not that I think that Christ was the Goddess, but that Christ sought to validate the Goddess and the feminine polarity.

Yes, I do agree that it can be dangerous and can feel like fire. But, that is quite different from saying it is a demon, that it is evil, bad, wrong, or a path away from God. I would say that it is in fact the most real energy of God. But, that doesn't mean one should actively seek it out. Seek out awareness, seek out understanding, seek out greater presence of being, seek out spiritual illumination. And if it leads towards the awakening of powerful energies, then embrace that and find peace with it. Demons are not the issue. Ignorance and blindness, and a fear of going within, yes, that is a real obstacle to finding true spiritual understanding.