1. Strictly speaking, all written works must be punctuated, but modern poetry has formed a trend of omitting punctuation. Omitting punctuation marks is an irregular behavior, especially in poems that need to be unconventional. For example, "injured bird let me touch your wings" should be "injured bird, let me touch your wings." ("Red Leaves")
2. Punctuation marks can not only be omitted, but also can not be used indiscriminately, and those that should not be punctuated can not be used indiscriminately. Take "wounded bird, let me touch your wings" as an example: you can't deliberately write "wounded bird, let me touch your wings"; Or "wounded bird, let me touch your wings and arms". If you need to separate special words, you can "borrow" dashes.