"It is when people seem at the end of their tether, and that nowhere can they find in the material world anything to help them, that they are ready to be illumined by the truths of the spirit."
Two Worlds No. 4435 (August 2013), pp. 11-12.
It is not impossible to learn lessons during happy times, of course. However, basically, on Earth, lessons are learnt in contrast, e.g., easy and difficult, happy and unhappy, good and bad. Thus, a life without any difficulties is not really beneficial for us in terms of soul's growth.
For we are here on Earth for soul's growth.
