system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does being extremely close to an object around your nose and eyebrows feel like a sixth sense, even with my eyes closed?

It feels almost like a weird, hair raising sensation.
gpt
Heat. You're feeling the heat of the object (if it's warmer or colder than the room you're in on average), or your own body heat reflecting off of it (infrared radiation), or changes in the temperature of air in the vicinity, or a combination of these. All of which you sense as a temperature difference.