In astrology, Mercury is considered the son of the Moon. The planet Mercury was born from the conjunction of the Moon and the star planets. Mercury enters Taurus on May 23. Just three days later, on May 26, at 1:40 PM, the Moon itself enters Taurus and creates an auspicious yoga by joining Mercury. In astrology, Mercury is considered the element of intellect, conversation, and business, and the Moon is considered the element of mind, emotions, and peace.