花嚴經文義綱目 1.73

1.73

Eighth, concurrent practice and non-concurrent practice: there are four propositions: either solely concurrent practice, namely the eighth assembly, because arising to function while in concentration is without obstruction. Or solely non-concurrent practice, namely the remaining assemblies excluding the first two, because one must emerge from concentration before there is preaching. A treatise says: "Why emerge from concentration? Because in concentration there is no speech." Or both [concurrent and non-concurrent], namely the first assembly, because preaching those five oceans and ten wisdoms while in concentration is concurrent practice, and only after emerging from concentration does he preach those oceans of ten world-systems. Or neither concurrent nor non-concurrent, namely the second assembly, because it lacks [concentration] altogether.