Itisnogoodondwellingthepast.Whatexistedorhappenedinthepastmayhavebeenbeautifulorexcitingandmaynowbringprofoundandpreciousmemories,butthepastisdead,anditisnothealthyforlivingspiritstolingeroveraworldinhabitedbyghost.Thepastmayalsobeaplaceofhorror,ofregret,ofspilledmilk,ofunfortunatedeedsthatcannotbeundone,ofsadwordslike"mighthavebeen."However,itispainfulandpointlesstofixateonaperiodthatcannotberelievedorrepaired.Itisunproductiveself-punishment.Thepastmustbekeptinitsplace,outliveandoutgrow. Itisalsouselesstoworryaboutthefuture.Whyflytoheavenbeforeit′stime?Whatanxiousvisionshauntpeoplewhothinktoomuchaboutthefuture?Theymayenvisionthehorriblemushroomcloud;theearthshrivelingfromradiation;theover-populated,abusedearthgonedead.Theymayimaginetheirownlivesgoingawry;appointmentsmissed;advancementsgiventosomeoneelse;theirhousesburnedtotheground;theirloveslost;everythingintheirlives,asinanightmare,slippingaway.Thereisnoendtothedisasterspeoplecanworryaboutwhenfocusinganxiouslyonthefuture.Thereareeventsinthefuture,includingtheirowndeaths,overwhichtheyhavelittleornocontrol,butwhichcanruintheirlivesiftheyworryaboutthem.Therearesomedisasterstheymaybeabletoprevent,buttheymustdothatbylivingwellinthepresent,notsimplybyworryingaboutthefuture. Thepresentmoment,whichisevennowmovingintothepast,istheonlyrealityIknow,andIdon′twanttomissit.Thewildcherrycoughdropdissolvinginmymouthissweetandsoothing.Evenmysorethroatandbackachehavemeaning.Thecoolnightair,thecrackingnoiseofmyfurnace,mycatyawningandstretching--thesearethetangiblerealitiesIcanrecognize.Theyexistinthismoment,togetherwithmyownbreathing,thewarmlampoverhead,thejerkingofmytypewriter.Alongwiththesearetherealitiesofotherandofalllifeonthisearth,whichmattertomenow,notatsomepastorfuturetime. Everyoneneedsasenseofhistory,Ithink,particularlyafeelingforhisorherownroots,buthistoryneedstokeepitsdistancetobeappreciated.Itisalsovitaltohavesomesenseofdirection,whichmeansmakingplansforthefuturebutnotbecomingpreoccupiedwiththem.Whatismostimportant,Ibelieve,islivinginthepresent,thatis,beingalivenow. Bydescribingthepastas"aworldinhabitedbyghost"(Line3,Para1),theauthormeansthat_______________.
A.the past is anindication B.the past is thesource of unhappy feelings C.the past is allabout the spirits of the dead D.the past is oflittle significance for the present正确答案D
