What is the source for the oft-repeated idea of trying to avoid daily challenges/nisyonos?
As one example, in daily prayers, we say "...וְאַל תְּבִיאֵנוּ...וְלֹא לִידֵי נִסָּיוֹן" - "Do not bring us close to... a challenge..." From Torah sources it would seem that facing challenges is an opportunity to accomplish one's purpose as was done by Avraham, Yosef, etc. and it would seem that avoiding daily challenges would deprive one of accomplishing his/her purpose.