Recently, after I started going outside some nights and staying out under the stars or the moon for an hour or two (I also cast spells about once per week.), I feel like my magic strength has been greatly amplified. In addition, not only have my future sight dreams became more frequent, but I've also become able to sense how many people (Not in numbers, but more like "None", "A few", or "A lot".) are in a room before I enter. This is normal, I assume.
However, for some reason, I've also gained a strange new feeling I can't explain. It's almost like my soul (Not my physical body) is craving spiritual (Or magical?) energy, and it makes me feel like draining energy from anything or anyone nearby when the feeling comes up. Are there any possible reasons for this new feeling?
Only thing I can think of your feeling of draining of others is if you are an psychic vampire...? Try asking others that you hang out with if they are feeling drained at all when you get this feeling. I do the same at times...and you'll not even notice your draining anyone at times but you will feel well energized. If this is true you can also true reversing it and give others energy which takes a lot of practice since it's easier to take than to give at least for me. I don't know what you are experiencing with sensing the number of people but I too have future sight dreams. One time though I noticed I used a lot of my energy that I got to be able to communicate better with spirits. It was very interesting but by the end of that day I had to reverse it at all cost since I was literally feeling like I was completely emptied out. Not sure if it had a connection with the psychic vampire but I believe it is since it felt like I was taken energy to use for my cause right away and got a splitting headache. It's normal to just recognize that feel when you start to get into magick and meditation more since you can feel and sense more when you are doing it let alone see other grow tired right in front of you.
It's not so much that I feel like I am draining energy, but more like I want to.
I feel like it may have a connection to the sudden spike in magic strength that I had. And it's also possible that my magic is associated with the night's energy somehow.
Do you feel unusually tired or hungry, or at least feel that way more than usual? It's possible that you're just using a lot more energy than before so your body is craving more energy to sustain itself. It's not a big issue, I'd just recommend either pacing yourself with magic or keeping up with your appetite more.
It could be that by doing this you are expending your energy more than usual. That and the rush of the heightened energy during the workings can give you a sort of high that may leave you craving for more.
Make sure to ground yourself after your magick workings. Eating something helps.
Also if you feel comfortable being at night and illuminated by the moon try doing energy work with the moon. Hold your hands up high and visualize it's energy (I recommend seeing it as silver) coming down at you through your Crown and into your Manipura chakra and filling you with its vitality.
I've gotten cravings to drain others' energy before too but it's a much better and healthier practice to get it from the sun or moon and also through breathing exercises. Unless you're a really advanced practitioner you just don't know the kind toxic baggage people may be carrying at the moment infused with their energy. Keep in mind that we are always engaging in a constant exchange of energy with our environment also.
I would suggest the same thing as alaric, You should get your energy directly from the higher sources instead of trying to steal it from others. The sun and the moon are good places to get energy from but there are also forces all around us that make those sources look meager in comparison. You will not be able to connect with the higher realm well if you try to gain your energy by stealing it from beings of the lower realms, you need to take the energy directly from the higher realms, from the beings and forces that lives all around you; for these are the forces that have an unlimited supply of energy and are the ones that can give us more energy then we can even use. This is the only real way to obtain higher energies, you cannot obtain it by stealing it from trying to steal from others. This would only give you a glimpse of what you seek.
The energy spike started almost at the same time that the new ability came around. I'm not sure what the cause was. I just started staying out under the night sky more often than usual. Maybe I was unconsciously absorbing energy while I was out there?
And, yeah. I agree that taking energy from others is a bad idea. Who knows what things are mixed in there.
If your worried that you might be corrupted by dark magic, don't be. Your magic is an extension of yourself and every action you take is a conscious choice. You cannot "turn evil".
I'm not worried about turning evil. And who says Dark Magic is evil? Evil Magic is evil. Dark Magic is just that: Magic involving Shadow energy or spirits as well as the manipulation of darker or night-associated energies (i.e.: Umbrakinesis, Lunakinesis, etc.).