Sanchy
Exegeis of Daniel 4 clearly indicate that the elements of the tree dream are figurative such as the tree, the stump with metal bands with its heart becoming human, passage of time of 7 times and the purpose of this dream was to remind peoples that God is mankind's Ruler. So the lesson applied to Nebuchadnezzer in the first instant but when one considers that right from the Introduction of the tree vision in vs.3 and to its conclusion in vs.34 it is clearly evident that God's Kingdom is thematic that the reality of God's Sovereignty is pictorially demonstrated.
Eisegesis is not necessary for the tree dream is a lesson about God's Kingdom as demonstrated by an historical episode in the reign of Nebuchadnezzer and consistent with the rest of the book of Daniel which develops that theme throughout the times.
It seems that you have a poor understanding of exegesis and eisegesis, both terms have a place in the broader subject of Hermeneutics.
scholar