Arcana Coelestia # 3092
3092. 'And gave him a drink' means introduction. This is clear from the meaning of 'to drink' (potare), an expression meaning almost the same as 'to drink' (bibere). 'To drink' (potare) here however entails a more active role on the part of the one who drinks. 'To drink' (bibere) means to receive, and also to be joined to, see 3069, 3089, so that 'giving a drink to' (facere potare) means imparting the ability to receive, which is the initial stage of the introduction.
Turban
A turban symbolizes intelligence and wisdom. Aaron's turban of ordinary linen, mean the intelligence that is related to natural truth. See Leviticus 16:4; Ezekiel 44:18. Things made of 'linen' or 'flax' signify truth in the natural level of a person's mind. (Arcana Coelestia 7601)
'A turban' signifies intelligence of truth.
(Odkazy: Apocalypse Explained 204)