Jesus embraced the Holy Spirit and became Jesus Christ. In the same way, -- or, rather, in his own way, -- Siddhartha embraced it, and became Siddhartha Christ; the Buddha. Christ is The Higher Self, and when you grow into your higher self, no matter what your first name may be, your last name (and the last name by which you will ever be known) will always be Christ; the Anointed.

Jesus may be your teacher, but Christ is within you. Regardless of who your teacher may be, or what spiritual tradition you may follow, the peak at which all souls arrive, and from which they regard the whole of Creation, is the same. Though our teachers may be men, and our paths may be man-made, the wisdom is from God, and it is God within us who comprehends it.