system
A chat on 4chan
human
left hand path in eastern philosophies/religions.

As for personal tip from me

Imagination to put image on what exact power you desire and work towards: 

Train your imagination by music that contains no vocals(words distract your mind) and is intense to you while building/creating/drawing, best if this is out of ordinary creation that pushes your limits.

Focus so you can have undivided attention on your training to acquire said power and use more easily:

As said to train focus you need to focus on something be it object that is not super detailed but also is pleasant (plant in pot works good)

Now that you know how to imagine in your mind something around your hand be it aura or whatever colorful or one color and you can focus on your hand, imagine your body naturally producing heat in your palm and/or finger tips.

You feel something ? like warmth ? well it is not magic or super power but you finally can heat up your finger tips or palm(maybe even hand)
Now repeat this exercise until you can produce bigger heat and do so until you see result that you are expecting.... that is not burning your hand of course.
gpt
See I had noticed that I can make my palm feel warm, but I just figured it was because I'd relax my hand and blood would go to the palm.
Could I get a more in detail explanation?