Teresa I also use the 'combination lock' analogy with sexual energies. A friend I once knew describes the phenomna as a creek: When you reach climax, your brain has gone down certain neural pathways to get there. This cuts a channel like a stream to the goal, and the pathway is now the path of least resistance. The channel cuts itself deeper and deeper each time. Making it less and less likely there will ever be another path. Your brain unconsciously remembers the neural pathways to the climax, but you consciously only see this as a series of evocative symbols that associate with the journey. It becomes a game of understanding and managing your symbols.