The Hindu term for "circle". In Hindu and Buddhist meditations, it is used to raise
consciousness. In meditation, the person fixes his or her mind on the center of the
"sacred circle." Geometric designs are common.
To a Muslim, Allah is the Almighty, Creator of the universe, who is similar to
nothing and nothing is comparable to Him. It is Allah who has made the Sun, Moon, symbolized
in the yellow of the design. The pattern depicts the name of Allah facing north, south, east
and west yet intertwined in the center.

Sanskrit letters or symbol for the "sacred" Hindu sound om (ohm or aum) called
"the mother of all mantras”.

It occurs in every prayer. Om is used to signify divinity and authority. OM is considered to be a cosmic sound, although it is not given any specific definition, it is highly respected and revered. The four parts symbolize four stages of consciousness: Awake, sleeping, dreaming, and a
transcendental state.  
A mandala is a sacred space, often a circle, which reveals some inner truth about you or the world around you. In Sanskrit mandala means both circle and center, implying that it represents both the visible world outside of us, and the invisible one deep inside our minds and bodies.

The Tibetan mandala is a tool for gaining wisdom and compassion and generally is
depicted as a tightly balanced, geometric composition wherein deities reside. The
principal deity is housed in the center. The mandala serves as a tool for guiding
individuals along the path to enlightenment. Monks meditate upon the mandala,
imagining it as a three-dimensional palace. The deities who reside in the palace
embody philosophical views and serve as role models. The mandala's purpose is to
help transform ordinary minds into enlightened ones.

The Sand Mandala
Mandalas constructed from sand are unique to Tibetan Buddhism and are
believed to effect purification and healing. Typically, a great teacher chooses
the specific mandala to be created. Monks then begin construction of the sand
mandala by consecrating the site with sacred chants and music. Next, they
make a detailed drawing from memory. Over a number of days, they fill in the
design with millions of grains of colored sand. At its completion, the mandala is
consecrated. The monks then enact the impermanent nature of existence by
sweeping up the colored grains and dispersing them in flowing water.
How Mandalas Heal
According to Buddhist scripture, sand mandalas transmit positive energies to
the environment and to the people who view them. While constructing a
mandala, Buddhist monks chant and meditate to invoke the divine energies of
the deities residing within the mandala. The monks then ask for the deities'
healing blessings. A mandala's healing power extends to the whole world even
before it is swept up and dispersed into flowing water—a further expression of
sharing the mandala's blessings with all.