Man goes into the noisy crowd to drown his own clamour of si

Man goes into the noisy crowd to drown his own clamour of silence.请分析一下这个句子.drown his own clamour of silence这句话直译不就成了：忘记他自己的沉寂的喧闹沉沉寂的喧闹 这不是矛盾么？或者是这句话另有深意？