why is catalyst so painful?

[Adonai One]

I tend to agree but a catalyst ceases to cause change if there is no suppression, no challenge towards one's desire, as a desire without catalyst would be inherently fulfilled.

One would inherently have an apple in hand if they did not have to face the catalyst of climbing a tree to acquire it. The apple-lover without the catalyst of tree-climbing would not experience the change of learning how to climb trees.