"To take (or hold) someone in your bosom" is also understood to mean being in prayer for the person. It can be construed, thus, that one wishes Abraham to pray for oneself from "up there." We Anglicans call that the communion of saints-- the everliving fellowship of believers who can intercede as well from up there as down here.

See MJH lyric Blessed Be the Name of the Lord:

If you don't love your deacon, don't spread her name around. Just hold her in your bosom, and carry her home to God.

~Susan