Gen 2
The garden that God had planted eastward in Eden and placed the man to dress and keep it, was also the place that God met and spoke with Adam to fellowship and teach him by inspiration in the cool of every day (Gen 3:8). This garden that God had planted is where God purposed to meet the man that He had formed from the dust of the ground. In this garden Adam would work, he would eat from this garden and God brought to Adam every beast of the field, every fowl of the air and every living creature that he had formed to be named by Adam.
In this garden God caused a deep sleep to fall upon Adam and took a rib and formed a woman, bringing her to Adam, who named her and cleaved (had intercourse) to her, consummating their union and became one flesh. This act of consummation was probably done before the woman was able to produce any fertile eggs and was pleasurable being done in the pleasures of the garden of Eden (the place of pleasure). When Adam knew his wife and bore a son, Cain, they were outside the garden of Eden and became fruitful and multiplied through procreation, but only after sin had entered into Adam through his transgression that was transferred to Cain.
Speaking of wisdom and understanding in relationship to the tree of life (Prov 3:13-19)...
13 Happy is the man that findeth wisdom, and the man that getteth understanding. 14 For the merchandise of it is better than the merchandise of silver, and the gain thereof than fine gold. 15 She is more precious than rubies (Job 28:18, Prov 8:11, 20:15): and all the things thou canst desire are not to be compared unto her. 16 Length of days is in her right hand; and in her left hand riches and honour. 17 Her ways are ways of pleasantness, and all her paths are peace. 18 She is a tree of life to them that lay hold upon her: and happy is every one that retaineth her. 19 The LORD by wisdom hath founded the earth; by understanding hath he established the heavens.
Prov 11:30
The fruit of the righteous is a tree of life; and he that winneth souls is wise.
Prov 15:3,4
The eyes of the LORD are in every place, beholding the evil and the good. 4 A wholesome tongue is a tree of life: but perverseness therein is a breach in the spirit.
Col 2:2-4
...the mystery of God, and of the Father, and of Christ; 3 In whom are hid all the treasures of wisdom and knowledge. 4 And this I say , lest any man should beguile you with enticing words.
2Cor 11:3
But I fear , lest by any means, as the serpent beguiled Eve (Ez 28:1-19) through his subtilty (false wisdom - Gen 3:13, Gen 2:1-7), so your minds should be corrupted from the simplicity that is in Christ.
The work of the devil in the beginning (1Jn 3:8) in the garden of Eden was to make the tree of knowledge to be a desirable tree of wisdom and understanding that would make those that ate of its fruit, having their eyes (Eph 1:18, Is 11:3) opened, to be as gods knowing good and evil (Gen 3:5-7). This tree of knowledge had nothing to do with God's wisdom or understanding, but was earthy, sensual and devilish (Jm 3:15). If Satan could get them to eat of this tree they would have no greater desire then the knowledge of good and evil lifting them up to be as gods, God would be forced to remove them from the garden of Eden as he was removed from his place, after corrupting the wisdom of his own throne by the iniquity found in him (Ez 28:15-19, Is 14:12-14, Ps 94:20).
When they did eat, they became aware of their own uncovered flesh (nakedness) that effected their mind, emotions, conscience, volition and conscious capacity that went from God-consciousness to self-consciousness, fear, double-mindedness, insecurity and they quickly covered themselves with a false covering of fig leaves as they hid themselves from the presence of God among the trees when they heard His voice walking in the cool of the garden (Gen 3:8-13). As soon as they ate, it did not take long for all that to happen and they were not covered by God until God made and clothed them with coats of skin (Gen 3:21).This time the presence of God came to them to bring the light of conviction and execute discipline upon them for their transgression and then to cover them, PERSONALLY, with coats of skins that came from animals whose blood had to be shed.