for those who need the yin yang cube for progression, note that the white cube and black cube are different for this.
Guide:
1. To get the "white" cube or should i call it, One. You need to get white cube normally, by clicking the cloud. Under any circumstances do NOT kill it.
2. To get the "black" cube or Two. Spawn in a white cube, not from the cloud, from the spawner, and yeet it to the sky.
3. Mix the two together.