Arcana Coelestia # 10101
10101. 'And to fill their hand in them' means a representative sign of Divine Truth emanating from the Lord's Divine Good in the heavens. This is clear from the meaning of 'filling the hand' as consecration to represent Divine Truth emanating from the Lord's Divine Good, and the transmission and the reception of that Truth in the heavens, dealt with in 10019, at this point by those on the lowest levels there.
Arcana Coelestia # 4934
4934. I have seen a bare arm, bent forwards, possessing so much strength and at the same time rousing so much terror that I not only shuddered at the sight of it but also felt as though I could be entirely smashed to pieces by it. It was irresistible. I have seen this arm on two occasions, and from this I was led to realize that 'the arms' means strength and 'the hands' power. I also felt the heat radiating from this arm.