In Japanese Buddhism, the Manji is an ancient and important spiritual symbol.

 In Buddhism the left-facing sauwastika is imprinted on the chest, feet, palms of Buddha and also the first of the 65 auspicious symbols on the footprint of the Buddha. In Hinduism the left-facing sauwastika is associated with esoteric tantric practices and often stands for Goddess Kali.  "In the footprints of Buddha the Buddhists recognize no less than sixty-five auspicious signs, the first of them being the Svastika ..."  

Although the more common form is the right-facing swastika, the symbol is used in both orientations for the sake of balance in Hinduism. Buddhists almost always use the left-facing swastika.

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Gold Buddhist swastika on large green bronze vase, Senso-ji, Buddhist temple, Hondō, main hall, Asakusa, Tokyo, Japan 

 

The difference between the Buddhist swastika symbol and the Nazi swastika symbol.

 

In Japanese Buddhism, the Manji is an ancient and important spiritual symbol.
The Manji (Sanscrit:  Svastika) represents the harmonious interplay of the many opposites in life – – heaven and earth, day and night, etc.
The horizontal line unites light and darkness, while the perpendicular line symbolically connects heaven and earth;  and these two combined, form a cross representing the universe in harmony beyond the limits of time and space.
From this harmony comes the power that creates and nurtures all things.
The ‘trailing’ lines at the ends of the cross represent the truth that the universe and all things in it are in a perpetual state of flux.
There two types of Manji — one a mirror image of the other.
The ‘counterclock’ Manji — with the ‘trailing lines’ running from the ends of the central cross to the left (called “Omote“) — represents infinite mercy.   This is the prevalent Buddhist Manji symbol in Japan:

 The ‘clockwise’ Manji — with the ‘trailing lines’ running from the ends of the central cross to the right (called “Ura“) — represents intellect and strength.
 The evil Nazis, twisting the true meaning of the “Ura Manji”, adopted it and tilted the Manji symbol at an angle of 45 degrees (corners pointing upwards and invariably in black).  Here is the much-hated Nazi swastika:

The Nazis ruined that symbol forever.
THE MANJI SYMBOL INFORMATION, FROM JAMES DEACON
By the way, the universal svastika symbol also arose independently in southwestern Native American cultures as the Whirling Log. It was also used especially by the Native Americans of the Mississippian culture:

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