22. In a letter dated 10 October 1988, the First Presidency wrote: “Practices frequently observed among the members of the Church suggest that some members do not fully understand the covenant they make in the temple to wear the garment in accordance with the spirit of the holy endowment.
   “Church members who have been clothed with the garment in the temple have made a covenant to wear it throughout their lives. This has been interpreted to mean that it is worn as underclothing both day and night. … The promise of protection and blessings is conditioned upon worthiness and faithfulness in keeping the covenant.
   “The fundamental principle ought to be to wear the garment and not to find occasions to remove it. Thus, members should not remove either all or part of the garment to work in the yard or to lounge around the home in swimwear or immodest clothing. Nor should they remove it to participate in recreational activities that can reasonably be done with the garment worn properly beneath regular clothing. When the garment must be removed, such as for swimming, it should be restored as soon as possible.
   “The principles of modesty and keeping the body appropriately covered are implicit in the covenant and should govern the nature of all clothing worn. Endowed members of the Church wear the garment as a reminder of the sacred covenants they have made with the Lord and also as a protection against temptation and evil. How it is worn is an outward expression of an inward commitment to follow the Savior.”