I have to agree with Sensei Takahashi here.
Life has pain.
Life is actually much more complicated and dangerous without it.
Until we really start learning from pleasure and success, the most valuable learning tool we have is the pain that motivates us to look at ourselves and change.
OTOH, I strive to control the amount of pain in the learning process.
I do agree Lynn (how's it going by the way) but again, that's more of a general thing in life, not necessarily, for some, specifically applicable to Aikido technique....