It is necessary to relinquish one’s own will, to act appropriately toward Him both outwardly and inwardly, and to fulfill the conditions He has conveyed.
Furthermore, through complete faith, one should be free from criticism, objections, and questions such as “Why?” and “How?”
This is alluded to in the words of Allah regarding the one who spoke with Him—Musa—as transmitted by our Prophet, peace and blessings be upon him.