"uh! that is me...emptiness!

While approaching the table to get a cup of coffee, someone stopped me and asked, "how are you doing today?" I happily responded, "I am fine thank you and I asked her how about you?"....pause..."well, it is kind of hard to say...pause...finally she echoed, "uh! that is me...emptiness!" Kind of interesting to know in-depth about the word-"emptiness" what her interpretation of the word? and how it is relevant to her present life. ?