Luckily, Guiseologisits have made it simple to identify which mask you are wearing in this lifetime.

The first step is to calculate your point of presence.
Birth Year + Birth Month + Birth Day = Point of Presence

For example, someone born in 2003 on August 15th, would have a point of presence of 2026.
2003 + 08 + 15 = 2026

Next, locate your point of presence in the mapping chart which reveals your mask.

In our example, someone with a point of presence of 2026 would be wearing an Obelisk mask in this lifetime.