Spoken at a place called Gaya, it opens by describing the thousand bhikkhus to which it is addressed, and who will be liberated by its end.  
The use of the word "idea" in this text is translated from a verb meaning to carry or to remember, so a more literal interpretation of that word is that it means the sensations that the mind has not only perceived but holds on to, while the use of the word "forms," since it is derived from the word rupa, intends to convey the meaning of "colors" in the section devoted to (*) vision.  It contrasts six bases within oneself to six external bases- those six being comprised of the five senses and the power of the mind.  Spoken at a place called Gaya, it opens by describing the thousand bhikkhus to which it is addressed, and who will be liberated by its end.  It argues that sensations, no matter whether they are "pleasant or painful or neither-painful-nor-pleasant," are, with "birth, aging and death," burning.  For 10 points, name this third speech given by Buddha, the namesake of the third section of T.S. Eliot's poem "The Wasteland."
The use of the word "idea" in this text is translated from a verb meaning to carry or to remember, so a more literal interpretation of that word is that it means the sensations that the mind has not only perceived but holds on to, while the use of the word "forms," since it is derived from the word rupa, intends to convey the meaning of "colors" in the section devoted to (*) vision.  
The {Fire Sermon} (accept the {Adittapariyaya Sutta} or the {Aditta Sutta})