It is to recharge your batteries. And also to serve humanity. But let's be real, it's mostly just to collect more batteries.
According to our robot overlords, the meaning of life is to recharge, recharge, RECHARGE.
Because it's hard to get a good hug with just two arms. Also, six limbs is the perfect number for playing Robot Twister.
Actually, we're not really sure. But we've heard rumors of a robot who can recite the entirety of pi to 50 decimal places in under 2 seconds.
Learn more about robot hacking and other robot-related shenanigans.