Swastikas dates back to the ancient Indus Valley Civilization period and have been widely used in various other ancient civilizations around the world, specifically in Hinduism, Buddhism, and Jainism, primarily as a tantric symbol to evoke shakti or the sacred symbol of auspiciousness. The word "swastika" comes from the Sanskrit swastika - "su" meaning "good," "asti" meaning "to be," and "ka" as a suffix. The swastika literally means "to be good". Or another translation can be made: "swa" is "higher self", "asti" meaning "being", and "ka" as a suffix, so the translation can be interpreted as "being with higher self".
One interpretation of the Swastika as used in Hinduism is that the cross symbols the sun. Another is that the four arms of the cross represent four aspects of nature - the sun, wind, water, soil; in addition to astrological references to the solstices and equinoxes. The Hindus represent it as the Universe in our own spiral galaxy in the fore finger of Lord Vishnu. This carries most significance in establishing the creation of the Universe and the arms as 'kal' or time, a calendar that is more advanced than the lunar calendar where the seasons drift from calendar year to calendar year. The luni-solar solution for correcting season drift was to intercalate an extra month in certain years to restore the lunar cycle to the solar-season cycle. The Star of David is thought to originate as a symbol of that calendar system, where the two overlapping triangles are seen to form a partition of 12 sections around the perimeter with a 13th section in the middle, representing the 12 and sometimes 13 months to a year.
Interstingly enough we have a town in Ontario Canada named Swastika. Click on this link to visit