Magic Circles Day or Magic Circle Day is June 14.

From google:

"Magic Circles Day on June 14th. One source mentions a celebration
of all magic circles used in ritual ceremonies to focus and raise the
energy inside the perimeter.”

and

"Jun 14, 2014 —June 14 – Magic Circle Day ... The Magic Circle
is a [stage] magician's club founded in London on this date
(apparently) in 1905.”

--
David Dalton dalton@nfld.com https://www.nfld.com/~dalton (home page)
https://www.nfld.com/~dalton/dtales.html Salmon on the Thorns (mystic page)
“And the cart is on a wheel; And the wheel is on a hill; And the
hill is shifting sand; And inside these laws we stand" (Ferron)

David Dalton <dalton@nfld.com> wrote in
news:0001HW.2C1BCF6D008E689D7000071B338F@news.eternal-september.org:

> Magic Circles Day or Magic Circle Day is June 14.
>
> From google:
>
> "Magic Circles Day on June 14th. One source mentions a celebration
> of all magic circles used in ritual ceremonies to focus and raise the
> energy inside the perimeter.”
>
> and
>
> "Jun 14, 2014 —June 14 – Magic Circle Day ... The Magic Circle
> is a [stage] magician's club founded in London on this date
> (apparently) in 1905.”
>
A magic circle is a Mandala, sometimes called a Yantra in South Asia.

Image of the Oregon Shri Yantra:

https://postimg.cc/QVJ8j6Cc

There are numerous commentaries explaining the esoteric meaning of the
Yantra and the mode of worship, such as the commentary by Lakshmidhara
on Sound Arya Lahari and on the Ananda Lahari, both composed by the Adi
Shankara.

There is a chapter in the Tripura Upanishad and one in the Bhavano
Upanishad and the importance of the importance given to the worship of
Sri Yantra.

Worship of the Sri Yantra is as interesting as it is complex: it is
ritualistic, abstract and esoteric, and yet the Sri Yantra is one of the
most meaningful and useful symbols that has been handed down to us from
the Adi Shankaracharya:

The essence of the vibration is the ecstatic self-recurrent
consciousness.

The most complex yantra, like the Oregon yantra, is the Shri Yantra of
the tantric school of Sri Vidya.

"Mantras, the Sanskrit syllables inscribed on yantras, are essentially
'thought forms' representing divinities or cosmic powers, which exert
their influence by means of sound-vibrations." - Khanna