Om
All of creation is music manifest. We talk about “vibrations,” “resonance,” “frequencies,” etc. in new age spirituality, while traditional spiritualities have always upheld this. Even in new myth such as the Silmarillion, this is true. In physics, we find this to be true.
Sometimes this is conflated with “word” but the distinction between speech and song is stronger today than it was in ancient times. Even today we say “A Song of Ice and Fire” or “The Song of Hildebrand,” “The Song of Solomon,” etc. etc.
Music can be represented geometrically and therein one can see many of the repeating patterns of the cosmos itself.
In Vedic traditions, and the traditions downstream from them, the primordial syllable of the universe is Om or Aum. This is quite literally a magic word and chanting it during meditation is especially powerful.
Reality follows thought and speech, not the other way around. Realize this, and many windows of possibility shall open.