Let's look at a example: I'm in the construction biz, the designer needed some pots moved about 4 feet high, very heavy! I had to carry them up a 8 foot ladder, 6 movers were there and not one of them could put them up on the shelf. I tried to lift them and they seemed to heavy for me to move. hours later she said you can put those up there can't u? I thought hmm I could barely lift them an hour ago, how can I get them up that high? well without thinking I grabbed the damn pots lifted them over my head and placed them on the shelf! Wow they said you are very strong! how did u do that? I said the mind is stronger than the body. O'sensei was able to lift heavy weight, and rip large trees from the ground with his bare hands. Like I said before forget about thinking about doing it and just do it. that is the key to Aikido.
Well, if it were that easy to "just do it", we can all award ourselves nth degree blackbelts and live happily ever after.