I can't get the structure of this sentence
"l pray that Our Heavenly Father may assuage the anguish of your bereavement and leave only the cherished memory of the loved lost, and the solemn pride that must be yours to have laid so costly a sacrifice upon the altar of freedom."
1. If I rephrase the sentence, does it go like this?(I'd like to know if 'leave' is for both 'cherished moment' and 'solemn pride'
"l pray that Our Heavenly Father may assuage the anguish of your bereavement and LEAVE only the cherished memory of the loved lost and LEAVE the solemn pride that must be yours to have laid so costly a sacrifice upon the altar of freedom."
2. the 'to have laid' part, what's the meaning of 'to' here? I'm certain that it doesn't mean purpose, and something tells me it modifies the noun 'solemn pride' but I need to disambiguate it with native speakers.