isn't power also a weakness ?

I've been away for a while. I've thaught about something. Check this out: Nietzche claims that every human feeling is a weakness. He thinks that love, pitty, religion ... are all weaknesses. He was obsessed with "the will of power". But doesn't his "weakness" theory aply also for "power". Isn't the "will of power" also a weakness ? I must admit that although i have read his works, i didn't read them all in order to completely understand him, but i think that this is where he went wrong. If every human feeling is a weakness, then isn't the obsession for absolute power also a weakness ? What do you think ?