The Dove Symbolizes the Holy Spirit

And after being baptized, Jesus came up immediately from the water; and behold, the heavens were opened, and he saw the Spirit of God descending like a dove and coming upon Him, and behold, there was a voice out of the heavens saying, “This is My beloved Son, in whom I am well-pleased.” Matthew 3:16-17 LSB

Jesus said, “But when He, the Spirit of truth, comes, He will guide you into all the truth; for He will not speak from Himself, but whatever He hears, He will speak; and He will disclose to you what is to come. He will glorify Me, for He will take of Mine and will disclose it to you. All things that the Father has are Mine; therefore I said that He takes of Mine and will disclose it to you." John 16:13-15 LSB

So any study of the Bible needs to include the Holy Spirit. Approaching the Bible with only human intellect will not get the job done. We read in 1 Corinthians 2:14 that the person without the Spirit does not accept the things that come from the Spirit of God but considers them foolishness, and cannot understand them because they are discerned only through the Spirit.

It's as simple as asking. Jesus said, "Ask and it will be given to you; seek and you will find; knock and the door will be opened to you. For everyone who asks receives; the one who seeks finds; and to the one who knocks, the door will be opened." Matthew 7:7-8 NIV