Minato is filled with regret during his confrontation with Obito. He thinks if only he had recognized Obito as the Masked Man during the assault on the Hidden Leaf Village, he could have stopped the attack, and maybe Kushina would not have died. The next day is the anniversary of Minato's and Kushina's deaths. Obito taunts Minato as a weak shinobi and seals every shinobi inside a barrier in order to destroy them all!
So don't get too depressed
if you can't do something well.
لِذا لا تحزن كثيراً عندما تفشلُ في القيامِ بشيء
Sei also nicht niedergeschlagen,
wenn etwas mal nicht klappt.
Aunque no te vaya bien,
Aunque no te vaya bien,
Perciò, non deprimerti 
se in qualcosa non riuscirai bene.
Então não fique deprimido se não
conseguir dominar algo.