>>2014
I think DNA complying to your consciousness is fairly common knowledge among spoopy circles. Beside being information in the purest energetic form, DNA is also a weak-bonded crystal, and its structure will change to adopt whatever poses the least electrical resistance to the dominant wave-form. Thought, will, intent, and your mode of being meld your genetic makeup as you live.
A wise man once said, a people get the goblins they deserve, those goblins can but don't have to come from anywhere external. They can and will manifest among the people in lineages that embody the goblin way of being.
You can improve or degrade physically in fairly short order, but the biggest change will be in your descendants. They originate from your DNA as it is now, instead of having to overcome an already established and functioning organism.
In higher "planes," the effects manifest much quicker, you can become an entirely different being physically and mentally in a single lifetime. This is technically a mental block though, realizing that you are the observer and author of reality will speed everything up.