chin of his breast

[unpakwon]

I don't understand the following expression in red. Is that correct?

Hour after hour, he rode on, his chin of his breast, lost in speculation, submerged is despair.

Thank you.

 

[Raymott]

I don't understand the following expression in red. Is that correct?

Hour after hour, he rode on, his chin of his breast, lost in speculation, submerged is despair.

Thank you.

I think it might be "his chin on his breast (chest)". Put your chin on your chest* and imagine feeling submerged in despair - you'll probably get it.

PS: This is anatomically impossible for most people, but you lower you head as far as you can. You don't have the psychological strength even to hold your head up.

 

[Rover_KE]

It looks like a typo for 'his chin on his breast'.