Breishis - Protecting Your Power

Why did Hashem specifically 'build' Chava (Eve) from the 'side' or 'rib' of Adam? What was it that Hashem contemplated (binah) as He built (vayiven) her? Why did He not build her from the head, eye, mouth, etc. of Adam? What is the concept of modesty? How does one approach the challenge of using one's power correctly in one's relationships? What is the idea behind the constant 'ringing' of Chava in Adam's mind as he slept? How can we protect our power so it doesn't adversely affect others?