Consensus of neurons

There have been certain books that have stayed with me through my life,remaining a more constant companion than many of the people i've been in relationships with.Books that follow or walk with you that you may not read often,  but have to be somewhere close by.An example would be Crow by Ted Hughes, I may not read it for months maybe a year, but a certain frame of mind a consensus of neurons will cause Crow, to insinuate into my mind just like that thought that pops up about an old friend & then that nagging suggestion that you must make contact regardless of how distant time has made you. Every one who reads must have a book or more that fits this criteria,