This normally happens in the facial area. Very often a blood vessel that has burst is easily visible, as the blood vessel is situated under a transparent layer of skin. These blood vessels can either be bright red or dark in appearance. The burst blood vessels can cause pain, if they come in contact with anything.
A couplet is a pair of lines of metre in poetry. Couplets usually comprise two lines that rhyme and have the same metre. A couplet may be formal (closed) or run-on (open). In a formal (or closed) couplet, each of the two lines is end-stopped, implying that there is a grammatical pause at the end of a line of verse.
A fourteen-line poem in iambic pentameter. An iamb is a poetic foot with a count of two syllables, where the second one is stressed. Pentameter is a poetic line with five feet: E.g. Loving /in truth, /and fain /in verse /my love /to show.. Three stanzas -- two quatrains and a sestet. A quatrain is a stanza of four lines; a sestet is a stanza of six lines. Traditionally the first quatrain introduces the subject, the second complicates the subject, and the sestet resolves or alters the subject in some way.