The theory and art of using bija mantras is taught in my Bija Mantras Of The Spinal Chakras instructional video and in my book Music And Sound In The Healing Arts.

Balancing Earth with Air (For Clarity of Thought)
Meditation:
a (ah) cham sha

Chant:
a (ah) cham sha ai ba jam jam sa (shaw) tham s (sh) va

Increasing Fire, Reducing Air, and Warming Water (For Digestion)
Meditation:
j tha ra

Chant:
c(ch) da(day) jam ta ta la pha s(ss) na(nay) r na ta na pa
ma jam pha ya

Expanding Ether (For Loss and Grieving
Meditation for quality space
i e s (ss)

Meditation
e sa e sa m

Chant
ai ai u (uh) c(ch) a (ah)
ai ai u c a
ai ai u c a
na va na va m (om)
i j i j m (om)
e----------------m

Balancing Earth and Fire (For Inner Warmth and Calm)
Meditation
e da e da va sah

Chant
h da na va e sa e sa ta pha nam dha (dhay) sha va
e sha va e sha va pha kam dha sa s va s va

Balancing Earth (For Grounding)
Meditation
e sah va

Chant
h sah e
va sa(shaw) la
sa na
e va e va sa(shaw)
ai sa (shaw) sa (say)
m sha va

Balancing Ether, Fire, and Water
(For Creative Dreaming)
Meditation
a (ah) ta ma s (ss)

Chant
s (ss) s (ss) e j
ta dha (dhay) ta dha (dhay) na la
e sha la da bha jam jham
s (ss) s (ss) pa ya la ya la
m (om) nam (am) ra tha

Balancing Water and Fire (For Balanced Sexuality)
Mediation
j na (nay) ba

Chant
r da ma da ma da ma
e ta la ta la ta la ta la
pa sa jham da(day) ya da(day) ya
s(ss) pa s(ss) pa s(ss) pa
u(uh) ma la sa(say) pa
e ta e ta la ra s(ss) dah
m(om)------------

Balancing Fire with Air (For Motivation and Healing Ulcerations)
Meditation
au kam da (day)

Chant
da dha (dhay) s (sh)
da dah s
cham cham cham
h ta r tham
h ta r jam
h ta r nam pa
sa pa va e tham da

Balancing Air and Water (Spritiual Awakening)
Meditation
o tham ya

Chant
i kam cham jam tam la
e bha i cham va
ta cham jam tam ma
u kam s ya ya gham cam

Balancing Air (To Slow Down Rapid Thinking & Reduction of Joint Pain)
Meditation
h gam jham

Chant
e jham e jham na
e tam jam gham
ajham e jham pa

ai sa va kam
e nam sa jham

e jham ejham s(sh)

Balancing Earth (For Shock)
Meditation
ai na va

Chant
e sa(say) va
cham la va
o dha e sa(shaw) ma la
s(sh) sa(say) pa cham sah va
sa (shaw) va sa (shaw) v