Arcana Coelestia#2692
2692. 'And the angel of God called to Hagar out of heaven' means comfort. This is clear from the meaning of 'calling out of heaven', also of 'the angel of God', as well as of 'Hagar'. 'Calling out of heaven' means influx, 'the angel of God' the Lord, 2925, 2319, and 'Hagar' the affection for cognitions of truth, 2691. An influx of the Lord into the affection for truth, when utmost grief is felt within that affection because truth has been taken away, is that comfort. That which with man flows in from the Lord is said to be 'called out of heaven', because it passes through heaven, and is clearly discernible there; but in man's perception and thought it is obscured and becomes discernible only through a change in the state of his affection, as here by his receiving comfort.
Arcana Coelestia#2925
2925. 'From burying your dead' means in order that they might emerge from night and be raised up. This is clear from the meaning of 'burying' and 'one who is dead' as being raised up from night as regards goods and truths of faith, dealt with just above in 2923, where the same words occur.