"...there is no such thing as 'hard' climbing or 'easy' climbing - more of this needs to be understood. 99 percent of us end up being just climbers, not 'Rock Gods', but really we haven't stopped doing the same things. When we give up the idea of competition and start motivating ourselves with our own goals rather than others' expectations, it becomes apparent nobody was watching all that time... your belayer is most likely thinking about dinner, a warmer duvet jacket or the next lead... whether you've just cranked out an E8 headpoint or topped out on a gripping V Diff, as long as the motivation has been rekindled, that's all that matters. Climbing on your own, solo, or just bouldering alone is a great way to source the real elemental stuff - it reminds you of your own limits, the boundaries you've set up. It is just movement on rock, moving through our own internal maps and renegotiating these boundaries - the only one you can't bribe is yourself! Also, too much concentration on training can be a bad thing, make the effort to get out on the real stuff despite the weather. Again, go exploring.
Climbing is a holistic experience: friends, geology, the route, weather, situation, history... you can rely on other elements while your motivation wavers: help a friend on a route, go out with someone new to climbing, go exploring, learn about geology, read some history, absorb other elements and don't expect to be the best climber on the planet... there is no such person."
For others on the same topic:
http://wiki.scottishclimbs.com/wiki/A_General_Guide_to_Training_for_Climbing