The Vesak day commemorates the birth and enlightenment of the Buddha.
It was said that Queen Maya dreamt of a white elephant which entered her side. Soon, she conceived the Buddha and gave birth to him in a park.
According to legend, he walked 7 steps as soon as he was born. With each step he took, a lotus sprouted. Then he raised his right hand and announced that this would be his last birth and hence cross the cycle of rebirths.
After many years of setbacks and religious practice, the Buddha finally gained enlightenment under a Bodhi Tree. An aura of 5 colors was said to enamate from the Buddha when he gained enlightenment.