We are not infinite, but we've been

The night of october 31, 1981, seen through the eyes of Severus Snape. How did he feel, as he discovered the Potters' bodies? [From the text]: "It feels like a cruel twist of fate that Lily's dead when the baby, who was the real target, isn't. I find myself looking into his eyes, this pair of awfully familiar bright green eyes, and it's almost like looking into hers."