There are only two of references in Swedenborg to “close” used as a verb, and both stem from Amos 9:11, which talks about closing the “breaches” in the “tent of David.” In that case “close” means removing false ideas so that something can be restored. It seems likely that “close” has a similar meaning in similar uses.
Passages from Swedenborg
Arcana Coelestia 10545
[7] In Amos,
On that day I will raise up the tent of David that is fallen down, and I will close up its breaches and restore its destroyed places. Amos 9:11.
‘The tent of David’ means the Lord’s Church and the holiness that goes with worship of Him. ‘Closing up breaches and restoring destroyed places’ means renewing those things by moving falsities away from them. ‘David’ in the Word means the Lord, see 1888, 9954, so that ‘the tent of David’ means the Lord’s Church and the holiness that goes with worship.
Arcana Coelestia 4926 (Elliott)
[3] In Amos,
I will raise up the tent of David that is fallen down, and I willclose up their breaches, and I will restore its destroyed places; and I will build it as in the days of old. Amos 9:11.
This refers to a Church where good is present. ‘The tent of David that is fallen down’ means the good of love and charity received from the Lord. For ‘a tent’ meaning that good, see 414, 1102, 2145, 2152, 3312, 4128, 4391, 4599, and ‘David’ the Lord, 1888. ‘Closing up the breeches’ stands for correcting falsities which have entered in through the separation of truth from good. ‘Building it as in the days of old’ stands for as the state of the Church was in ancient times. In the Word that state at that time is called ‘the days of eternity’, ‘the days of old’, and also ‘of generation upon generation’.