a. safety
In the stanza the speaker is trying to protect someone. He talks about using gauze and velvet to "absorb the shocks and treat his wounds". He also talks about giving back the person his life. It is clear in this passage the speaker does not wish any evil on anyone so "destruction" is not correct. Also, separation does not fit. While it does seem as though the speaker has love for the person, the gauze does not represent it.