Here's an artifact you can try. It should appear to your mind as a stone, maybe marble, rod, white with ornaments, maybe 20 cm long. Hold this and concentrate some qi into it to activate during meditation or practice: It will then start "bouncing" the energy on objects and beings in your surroundings to create a vortex of free unused energy which you can borrow to increase the effect of your inner alchemy. It has an effect similar to an amplifier made from an iron barrel or a simple cone for speaking in, causing the energy to increase with no consumption.