What about my world's strange tower?

The way to brush the strange tower in my world is as follows:

Tools: Lenovo Y7000P, Windows 10, My World 1. 16.

1. First, we need to build a long pillar.

2. Then build a platform opposite the pillar.

3. Then fence a circle here.

Then let a villager in, and be careful not to let the villagers run out.

5. Then put a brush cage on the opposite side and put the brush you want in it.

6, wait until the evening, the strange tower will continue to brush out monsters.