Is the name chosen according to the attribute of each word or the attribute of five-grid mathematics?

Take care of both.

first

The five elements of the name itself must conform to the use of God, neither too much nor too little-this is the essence of China's Eight Diagrams and Five Elements of Zhouyi.

then

The attribute of "three talents and five grids" is consistent with the love of God, at least, three talents are consistent with the use of God, and heaven is consistent with the Western God.

It is entirely possible to achieve both,

But sometimes you may not be able to use Chinese characters because of their strokes and meanings.