When first hearing the term "black power," it tends to conjure the period of the 60's, and the political uphevals associted with it. A term that popularized by Stokely Carmichael, aka, Kwane Ture, it symbolized a rallying cry that went contrary to Martin Luther King's non-violent philosophy.
Elijah Muhammad and the Nation of Islam on the other hand, had a very different understanding of the true meaning of Black Power.
A profound example of Elijah Muhammad's comprehensive lecture is demonstrated when he asked, "If the scripture said that in the beginning God said 'Let there be light,' then He couldn't have been in the light when he said that. He Himself had to have come from Blackness; thus ORIGINAL BLACK POWER!