Arcana Coelestia # 3140
3140. 'He said, Come, O blessed of Jehovah' means an invitation to the Divine within Himself. This is clear from the meaning of 'come' as an expression of an invitation, and from the meaning of 'blessed of Jehovah' as the Divine. 'Blessed be Jehovah' means the Divine itself, see 1096, 1420, 1422; consequently 'the blessed of Jehovah' means the Divine that proceeds from Him. Good is the Divine itself, but Truth is the Divine that proceeds from it. 'The man' here who was sent by Abraham means truth from the Divine, within the natural man, 3134. Divine truth is that which is called 'blessed of Jehovah' and which is 'invited'.
Bless
The Lord in essence is perfect love expressed as perfect wisdom. He created us so that He could love us, give us love and wisdom of our own, and thus be united with us. This is the ultimate blessing, for us to receive His love and wisdom and to be together with Him, and all other forms and meanings of "blessing" flow from it. This flow, however, takes many different forms in the Bible. When people receive the Lord's blessing, it illustrates how His love and wisdom flow into us in forms that fit the spiritual state people represent in the Word. When people bless the Lord, it indicates an acknowledgment that life and all its gifts come from Him and shows a desire to accept them and be conjoined. When people bless each other, it represents the desire to share good desires and true ideas as much as possible.