Bulb is only like body. Here he only refers to his body as himself. But, when he hurts his leg, he says My leg is hurt . On one occasion you consider your body as I and on another occasion, you say it is my body . In truth, I represents Atma , and Atma , Heart, Truth are all synonyms.
Names are only to facilitate communication and identification.
Rama and Krishna are all names given to body. The first name of all is I . Even Bhagavan is I in the beginning. That is why the Vedas say Aham Brahmasmi . I or Atma comes first, then only the word Brahman comes.