What does AUM or OM mean?

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Aum"
(also spelled as "Om") is a sacred sound and spiritual icon in Indian religions, including Hinduism, Buddhism, Jainism, and Sikhism. It holds deep significance and is considered a primordial sound from which the universe originated. The symbol "ॐ" represents this sound visually.
In Hinduism, "Aum" is considered the most sacred mantra and is often chanted at the beginning and end of prayers, meditations, and rituals. It is believed to encompass the essence of the ultimate reality, representing the three aspects of existence:
- A (अ): Represents the waking state, material reality, and the external world.
- U (उ): Represents the dream state, the mind, and the subtle realms.
- M (म): Represents the deep sleep state, the unconscious, and the spiritual dimension.
The three parts of "Aum" are followed by a pause and then followed by a final unspoken sound, representing the transcendent state or the absolute reality beyond the individual experiences.
Chanting or meditating on "Aum" is known to have a profound spiritual and transformative effect. It is a way to connect with the divine, attain higher states of consciousness, and align oneself with the cosmic vibrations.
Overall, "Aum" is a symbol and sound that encapsulates the profound philosophical and spiritual concepts of existence, consciousness, and the interconnectedness of all things in Indian Dharma.