Contrast: shoulder to shoulder is to meet elements with the same yin and yang properties of the five elements, such as bentonite meets bentonite and fire C meets fire C.
Rob: rob money, that is, meet the same elements with opposite yin and yang attributes of the five elements, such as Wu Tu meets his own soil (Wu Tu is Yang and his own soil is Yin).
Shoulder-to-shoulder and robbing money are two of the "ten gods" in the eight-character numerology.
If a person is Jia Muyan, another Jia appeared in the Eight Characters or the Universiade. If Jia represents himself and the other Jia is exactly like him, it represents his brother and wife's lover or boyfriend. In other words, in any of the eight characters, if you represent yourself repeatedly, you will reveal a secret. In reality, there is a person with the same background as you.
Therefore, if a person's yen is a nail, and it also appears in the Universiade, it represents a possibility that there will be a person with the same identity as himself, probably his wife's lover. This heavenly dryness, which is the same as the five elements of the yen, is called "shoulder-to-shoulder" or "robbery". Every time a strong man meets a shoulder or grabs money, it means that someone shares what you have with you. This person may be a third party in love, a competitor at work, or your brother or sister.
Baidu encyclopedia-robbery