
The soft-spoken Smith instructed us to focus on our breathing - to "feel" and pay attention to this most basic of bodily functions. He told us to keep our eyes open at a 45 degree angle and take in our surroundings, being aware without being distracted by them.
http://www.buddhistchannel.tv/index.php?id=7,8091,0,0,1,0
Square root of 2
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The square root of 2 is equal to the length of the hypotenuse of a right triangle with legs of length 1.The square root of 2, also known as Pythagoras' constant, is the positive real number that, when multiplied by itself, gives the number 2.
Geometrically the square root of 2 is the length of a diagonal across a square with sides of one unit of length; this follows from the Pythagorean theorem. It was probably the first number known to be irrational. Its numerical value approximated to 65 decimal places (sequence A002193 in OEIS) is:
1.41421 35623 73095 04880 16887 24209 69807 85696 71875 37694 80731 76679 73799....

In the astrological gylph for the planet Mars there is also a circle and — if the figure is correctly drawn — an arrow pointing up to outer space at a 45-degree angle above the horizontal. The 45-degree angle is very significant in that it marks a direction of maximum intensity in electromagnetic fields. The circle here represents the biopsychic field of man's personality, and when internal pressure builds up to an explosive point it is released in a "Martian" outgoing. What we have therefore in the Mars symbol is a picture of simple, spontaneous release of energy.
http://www.khaldea.com/rudhyar/astroarticles/planetssymbols_ 2.shtml
The first chakra extends forwards from the base of the spine, and downwards, at roughly a 45 degree angle, although its exact position will vary from person to person. The other five chakras, spaced between the first and seventh, have at their appropriate locations a front component extending out the front of the body and a rear component extending out the rear of the body.
http://www.chioshealing.com/HealingLevel1/ChakraSystem/chakr asystem.htm
Positioning the eyes at a 45-degree angle upward, focused on the brow just above and between the eyes, assists in the clarity of imagery.
http://active-stream.com/Kahuna/Huna5.html
etc.