A deeper insight into this mystic symbol reveals that it is composed of three syllables combined into one, not like a physical mixture but more like a chemical combination. Indeed in Sanskrit the vowel 'o' is constitutionally a diphthong compound of a + u; hence OM is representatively written as AUM.
Fittingly, the symbol of AUM consists of three curves (curves 1, 2, and 3), one semicircle (curve 4), and a dot.
Going further, the science of ‘Moksha’, or liberation, better known as Vedanta too requires a qualified seeker to attain full benefit from it. Only the one who is qualified for it can attain Moksha. However, only a very few people are interested in Moksha, because the majority of us live under the illusion that happiness is the result of fulfilling worldly desires, while Moksha is something which has no trace of ‘wordliness’ in it, and this is what frightens us, making us believe that Moksha is not our cup of tea at all.
The mind is by its very nature fickle and restless. Hence it is extremely difficult to keep our mind fixed on the Supreme God (Para-Brahman), who is without form and of extremely subtle essence. To help out the aspirant therefore, the Upanishads prescribe certain focused meditations known as Upasanas which gradually help him make progress on the spiritual path.