There is power in knowing that others are aware of you and are cheering for you.
As a group of church leaders crossed Missouri in 1831, they received that kind of assurance from the Lord:
The testimony which ye have borne is recorded in heaven for the angels to look upon; and they rejoice over you, and your sins are forgiven you.Doctrine and Covenants 62:3
They might have wondered what use their testimony served, particularly if it was not well-received. They may have wondered what was the use of their meager efforts to share the gospel. Such an affirmation from the Lord must have inspired them and given them courage to carry on.
When the Savior visited the ancient inhabitants of the American continent, He provided a similar message. Speaking to the twelve disciples He had chosen, He said:
My joy is great, even unto fulness, because of you, and also this generation; yea, and even the Father rejoiceth, and also all the holy angels, because of you and this generation; for none of them are lost.3 Nephi 27:30
President Henry B. Eyring said:
Angels rejoice as priesthood leaders across the world build Zion in their wards, stakes, and missions. And they will rejoice over the young men and women you help to build Zion wherever they are and in whatever circumstances they may be.“Help Them Aim High,” General Conference, October 2012
Today, I will remember that heavenly beings are aware of my actions and my words. I will remember that they rejoice as I contribute to the work of the Lord, even if I don’t always see the results of my efforts in the short run.