The wood of the first month is in its peak season, and the fire body is prosperous. Although sitting down and the time pillar were leaked to no avail, it was still considered prosperous.
Therefore, the five elements of fire can be used to replenish the body. Among the five elements and numbers, fire is 2 and 7. You can choose wood 3 or 8 to make a fire. As long as the number contains a few of these four characters, it's fine.
For example: 3 (or 8), 2 (or 7), 8 (or 3) and other combinations.