Who can help me solve the meaning of "quantity refers to mental arithmetic"? Mine is wishful thinking bones! The following is the text, I want all the meaning.

Literally understand. The early years were not smooth and unlucky, but in middle age, it was good luck and it was necessary to change its name. Also, your family is relatively cold and warm to foreign friends. You are more versatile and original. Don't always stay in your hometown, go out and start a business. It's easy for you to make money and spend money quickly. You can't do things smoothly before you are 30, and it's a good time to be satisfied after you are 40. Can live a long life, although the wife does not conform to your life, but it does not hinder. When you are 8 1 year old, March may be a little troublesome. You should help the poor, which will increase your life.

In spring, a flower is in full bloom, but it is climbed by the wind (bee) waves and butterflies.