["understanding" totally overestimates what Akira is thinking here, it's more like. "accepting??" he has no idea how living gems work, he just knows he's talking to one who claims to be one and you know what?? that's okay!!!]

Then it sounds like we're both a little out of our boxes, here.

[lifting the glass again]

A toast is when you raise your drink and say, "we hope for good fortune!" or something along those lines. Then you clink your glasses together and take a sip and hope that your wish comes true.

[humans are very silly]