The Baha'i understanding is this:
The reality of Christ, the Spirit of Christ, the perfections of Christ all came from heaven. Consequently, by saying He was the bread which came from heaven He meant that the perfections which He showed forth were divine perfections, that the blessings within Him were heavenly gifts and bestowals, that His light was the light of Reality. He said, "If any man eat of this bread, he shall live for ever." That is to say, whosoever assimilates these divine perfections which are within me will never die; whosoever has a share and partakes of these heavenly bounties I embody will find eternal life; he who takes unto himself these divine lights shall find everlasting life. How manifest the meaning is! How evident! For the soul which acquires divine perfections and seeks heavenly illumination from the teachings of Christ will undoubtedly live eternally. (pup 450-451) (12:23)

End of Quote