呼吸往來,不及法禁
Exhaling and inhaling going and coming, never reaching what the system prohibits
呼 to breathe out, exhale
吸 to breathe in, inhale, absorb.
往 to go, towards, past
來 to come, to arrive, next
不 not, no
及 to reach, up to
法(灋) method, system, to punish, to force
禁 (jìn) to prohibit, to forbid, (jīn) to contain, to restrain oneself
Breathing is one of the cornerstones of old practices. If the first part of the quote seems quite clear, the second part is quite obscure, what is prohibited by the system isn’t explained further in the text.