A poem that expresses the thoughts and feelings of the poet.
A Lyric is a type of poem in which the expression is much more personal and tends to show more feeling or emotion throughout the piece. It is often a more formal type of poetry when it is read and written as well, typically spoken in the first person (I/me). There are also many different meters that can be used to express a lyric, or even a combination of meters as well. Even further, many will recognize a lyric within songs and music.
The art of lyric poem is actually derivative from the Ancient Greek culture, in which a lyric was often performed with some type of musical component to accompany it. Aside from Greek culture, we have also seen lyric poetry being used in Rome, China, and even during Medieval times. Of course, this type of poetry is still quite popular today, and can often be found in music in the current 21st century.