psi , ki , Qi and chi are the same just different terms and/or spellings
for energy that is the vital prana but there are other "flavours" of
energies which are distinct in nature ;

Universal.Heavens Stone..........Manifestation.Consciousness.Soul. .............Tse/Xie......................Culmination.Conception.AI R

Mental.Moon Stone...................Flow..........Brain....... .....Mind.
.............Shen.........................Intuitio n.....Force .........WATER

Spiritual..Sun Stone..................Will ..........Heart..........Spirit.
..............Chi...........................Vitali ty......Vector..........FIRE

Physical..Earth stone................Constraint..Vessel.........Bo dy ..............Ching........................Generat ive.Cessation.....EART H