Is there a saying that when meridians collide with each other, there must be a fierce battle?

Yes, but it depends.

Although the earthly branch in the eight characters contains meridian, it does not necessarily rush, and there are other heavenly stems and earthly branches adjustments.

Do great things, such as breaking ground and getting married, and choose a day to do it. Be careful and not careless. When you meet "children" in life or in the sun column, you must avoid "doing things at noon, especially at noon". Offenders will have an accident on the third or fifth day, or months or years later, remember.

We should also pay attention to the crime of "immortal evil spirits", which is not good for the dead and future generations. For example, the burial period after the death of Xiao Shu people should avoid the "noon" of the earthly branch. It's a long story for your reference.