What does it mean to say that children have big fish and small ponds in eight-character fortune telling?

It shows that the current environmental constraints may bring great development in the wider world. Fortune teller's birthday prediction (four-column, eight-character and six-column prediction);

Eight-character fortune-telling should pay attention to the broad sense of fortune-telling, including fortune-telling, palm reading, gossip, Taoism and so on. Ancient divination, black martial arts, divination and so on all belong to the category of fortune telling. Fortune-telling in society generally refers to four-column and eight-character prediction. According to bamboo slips of the Warring States Period, fortune-telling began in the pre-Qin period.

Extended data:

Note that fate exists objectively. This objective existence actually refers to the individuality and particularity of life state. Everyone has a different fate under life. Fate is always a big problem that puzzles life. Destiny must exist between the knowable and the unknowable, because both life and the future have external non-human contingency factors.