In the series its explained that zangestu is apart of ichigo and was surpressing his powers, didnt want ichigo to become shinigami,and practically always hinders ichigo as one day he might have to kill him based on his changes. Sorry but I read this in a wiki. Zangestu tells ichigo he should know him that the zanpakto is physical representation of ichigo's power, ichigo remembers its ribbon red from his friend.my question is one episode toshiro and another guy had same dream for the sword and both wielded short time and socal society decided only one can wield him, if the zanpakto is apart of a shinigami then how can two people have same power. And how come toshiro had dreams to wield while ichigos case he didnt.if it wasnt for rukia power awaking and unahara forcing through kido ichigo never became shinigami 

Its like toshiros zanpakto was given to him by soul society because they agreed he was worthy after beating other guy