Mosiah 24:10-14

10 And it came to pass that so great were their afflictions that they began to cry mightily to God. 11 And Amulon commanded them that they should stop their cries; and he put guards over them to watch them, that whosoever should be found calling upon God should be put to death. 12 And Alma and his people did not raise their voices to the Lord their God, but did pour out their hearts to him; and he did know the thoughts of their hearts. 13 And it came to pass that the voice of the Lord came to them in their afflictions, saying: Lift up your heads and be of good comfort, for I know of the covenant which ye have made unto me; and I will covenant with my people and deliver them out of bondage. 14 And I will also ease the burdens which are put upon your shoulders, that even you cannot feel them upon your backs, even while you are in bondage; and this will I do that ye may stand as witnesses for me hereafter, and that ye may know of a surety that I, the Lord God, do visit my people in their afflictions. The Nephites were able to still pray to Heavenly Father for help even when the Lamanites were watching them. I find that I pray in my thoughts alot during my day. It seems I need alot of help all day long. Heavenly Father says that he will ease our burdens. I think that is a great promise. If you don't pray during the day try it. You can do it where ever you are, Heavenly Father will still hear you and answer your prayers.