The Legend of the Pekingese
There are two origination stories for the Pekingese. The first is the most common, The Lion and the Marmoset:
A lion and a marmoset fell in love. But the lion was too large. The lion went to the Buddha and told him of his woes. The Buddha allowed the lion to shrink down to the size of the marmoset. And the Pekingese was the result.
The second, less-common, originating story is The Butterfly Lions:
A lion fell in love with a butterfly. But the butterfly and lion knew the difference in size was too much to overcome. Together they went to see the Buddha, who allowed their size to meet in the middle. From this, the Pekingese came.
Another legend says that the Pekingese resulted from the mating of a lion and a monkey, getting its nobleness and coat from the former and its ungainly walk from the latter. Because the Pekingese was believed to have originated from the Buddha, he was a temple dog. As such, he was not a mere toy. He was made small so that he could go after and destroy little demons that might infest the palace or temple. But his heart was big so that he could destroy even the largest and fiercest.