Why is the molecule more stabilised by resonance when there are more resonating(contributing) structures available ????

Plz explain this to me as fast as u can aieee is approaching hurry please !!!

dear geoffery ,

                    i m explaning u with a example => let there is a person (A) sitting in a room , if we decide to shoot him from outside then we can easily do this task ...so we can say attack on this person is easy thus stablity is very low ...

now see if there are 40 different persons sitting in a class along with (A) then same task is given , now it would become

very difficult coz person (A) can be in first row , may be in second & or in 40 different position ...now we can say stablity

of person is very high ....

in same manner if molecule has more resonating structures then chances of attack of reagents (electroplile , neucliophile etc) will be less hence stablity increases ...

note => whenever resonance is possible then there can be 1 or more than 1 possible products of a reaction...