To endow is to enrich, to give to another something long lasting and of much worth. The temple endowment ordinances enrich in three ways:
a) The one receiving the ordinance is given power from God. “Recipients are endowed with power from on high.” b) A recipient is also endowed with information and knowledge. “They receive an education relative to the Lord's purposes and plans.” Mormon Doctrine, page 227.) c) When sealed at the altar a person is the recipient of glorious blessings, powers, and honors as part of his endowment.