The Khanda is the emblem of the Sikh faith, symbolizing the four pillars of Sikh belief.
One day, when he was approximately 30 years old, Sikhism's found Guru Nanak sat in meditation at the bank of the Vanyi river, when he heard God's call to give his life for world up-lift by guiding men on the right path to Him. Nanak resolved to obey the call immediately. After three days in prayer, he emerged saying "There is no Hindu, no Moslem."
Historians and specialists in Eastern religions generally believe that Sikhism is a syncretistic religion, originally related to the Bhakti movement within Hinduism and the Sufi branch of Islam to which many independent beliefs and practices were added.
That is why I place the Khanda between the Star and Cresent and the Aum in my cycle of harmony.