Triple spiral - Triskele

The shield knot is believed to a universal symbol of protection which originated thousands of years ago. This symbol is believed to be an ancient celtic symbol (celtic people were considered to be ancient people of Europe). It was used to ward off evil spirits. Celtic symbols were extensively used in jewelry and art and such patterns weren't derived from the nature. It is also thought to be the origin of the "Qabbalistic Cross" ritual. Some of the other names of this symbol are St.Hans cross and the Earth Square.

OM- The symbol of absolute Om - or the aum is the symbol of essence of Hinduism. It means oneness with the Supreme, the merging of the physical being with the spiritual. The most sacred syllable, the first sound of the Almighty – the sound from which emerges each and every other sound, whether of music or of language. Meditation of Om satisfies every need and ultimately leads to liberation. Nearly all the prayers and recitals of sacred passages are prefixed by the utterance of om.