The main way to put text in your buffer in vi is insert.
	Several commands enter "insert" state:

	  i	insert text right here
	  a	insert text to the right of right here
	  A	insert text at the end of the line
	  I	insert text at the beginning of this line
	  o	insert text on a following blank line
	  O	insert text on a preceding blank line

	Insert state is terminated with the ESCape key. 
	You can also terminate insert with ^C (intr) but
	that ABORTs the insert state, and your text is lost.
	Note that insert state IS line oriented, when you have
	finished inserting each line, that line is in the buffer
	to stay.

	Several control characters have special meaning to vi
	when you are inserting text, so they will cause actions
	rather than be inserted.  Do not be alarmed, this kind
	of ragged non-parameteric functionality is common in vi.
		
	The following commands work within insert state:

	  ^H	erase last character
	  ^W	erase last word
	  ^U	erase this insert line
	  \	quote next character
	  ^V	really really quote next character