It Is

It is a balm
 to make one calm.
It is a farm
 where one lives in form.
It is a house
 one can live in a course.
It is a book
interesting to look.
It is a charm
 would cause no harm.
It is a strength
 that helps you in length.
It is a river
 flows forever.
 It is a sea
 I would love to see.