The mind was in the left hand because it is separate from the strength of the right hand, and standing is not the highest and strongest for the sake of reliance. He said regarding prayer, “Establish the prayer,” and he said, “The prayer has begun,” so he informed of the past before the servant performed it, so he wanted the establishment of God’s prayer upon the servant, so that the servant would stand up for prayer, and by his standing establish its origin. He said God Almighty is the One who sends blessings upon you. He is referred to by His saying, “The prayer has been established,” so standing is considered in acts of worship, including standing on the day of Arafah, in gathering, when throwing stones, and all the acts of Hajj. All of them are not valid except for one who is standing.