Listening
After a few annoyingly painful minutes, Atticus struggled to get up. He truly hated getting hit by that lightning.
Atticus quickly figured out why he had missed the sound of the second bolt of lightning. It was simple, really.
He had lost concentration because of the noise his body made when he had dodged the first lightning bolt, making him miss the almost imperceptible noise of the lightning.
After figuring this out, Atticus inhaled deeply, immediately focusing on his ears. He entered the earlier state of absolute concentration far more quickly this time than the last time.
As soon as he entered this state, he swiftly darted to the right, evading a bolt of lightning.
Learning from his earlier mistake, this time Atticus maintained his absolute focus, listening intently to every sound. He tuned out all the sounds he made, even the sound of his heartbeat.