That means the sign Ohm. The symbol similar to figure 3 or on a letter Z with a flourish sideways means that all reality of the person is shown through the awake state, an unconsciousness (a condition of a deep sleep) and a transition state between a dream and wakefulness (a condition of a dream when dreams dream). From below the semicircle is awake, from above a semicircle - unconscious, sideways — intermediate states. The point means a state which Buddhists call a nirvana (it that it was more clear), i.e. our ultimate goal, our final point which we have to comprehend. What prevents it to us to make? It of course illusion or Maya. The Maya it is represented by a semicircle lower than a point, illusion belongs only to our world in which we live.
As to us to reach this point. Mantra one of bases. AUM the most powerful mantra, all mantras begin with this sound. The most known mantra, the truth in the Buddhism, MANYA'S OHM to PADMA KHOUM. In Hinduism their big set, for example, OHM of NAMO BHAVATE VASUDEVAYa. The mantra — is the same prayer which it is necessary to repeat 108 times. The mantra clears reason, the understanding of truth comes from within. At first sight will seem how it is possible to remember these words, in general that is easy, several times read and they ate to you in a brain, as "a straw at the ocean not to drown".
Step 1. We draw the symbol similar to a letter Z — our unconscious and awake state.
Step 2. We draw an intermediate state.
Step 3. We draw Maya and a point — an ultimate goal.
Step 4. We paint over everything.