Is Jesus' description of the Holy Spirit as “rivers of living water flowing from within” a metaphor for a conscious supernatural experience?
Jesus said to the Samaritan woman.
John 4:13-14 (NASB)
13 Jesus answered and said to her, “Everyone who drinks of this water
will be thirsty again; 14 but whoever drinks of the water that I will
give him shall never be thirsty; but the water that I will give him
will become in him a fountain of water springing up to eternal life.”
Jesus used this metaphor to explain the manner a person’s mind and heart as being like a fountain that bubbles up benefits, continually strengthening his faith, and guiding his steps on the way to eternal life.
At John 7:37-39, Jesus gives emphasis that when a Christian has an abundance of these spiritual waters-"from within him will flow rivers of living water". This sharing of the message with others seems to be the thought behind what Jesus said at John 7:37-39.
John 7:37-39 (NASB)
37 Now on the last day, the great day of the feast, Jesus stood and
cried out, saying, “If anyone is thirsty, [a]let him come to Me and
drink. 38 The one who believes in Me, as the Scripture said, ‘[b]From
his innermost being will flow rivers of living water.’” 39 But this He
said in reference to the Spirit, whom those who believed in Him were
to receive; for the Spirit was not yet given, because Jesus was not
yet glorified.
It was on the day of Pentecost that the holy spirit was poured out by Jesus Christ on the group of about 120 disciples gathered in the upper room in Jerusalem in the year 33 C.E. (Acts 1:13-15) There was no doubt in the mind of those 120 Apostles and disciples (about) gathered in that room that they were anointed with holy spirit. It would certainly have be an unforgettable experience to notice the tongues of fire on their heads.
However, not all who believe, receive the gift of the holy spirit in such a spectacular manner, later that day about 3.000 people were anointed by holy spirit. There appears to have been no supernatural experience, noticed by anyone when they received the promised gift of the holy spirit.
Acts 2:37-38, 41 N(NASB)
37 Now when they heard this, they were [a]pierced to the heart, and
said to Peter and the rest of the apostles, “[b]Brothers, what are we
to do?” 38 Peter said to them, “Repent, and each of you be baptized in
the name of Jesus Christ for the forgiveness of your sins; and you
will receive the gift of the Holy Spirit. 41 So then, those who had
received his word were baptized; and that day there were added about
three thousand [a]souls.