Yitzchok

At this point we don't know very much about Yitzchok. We know that he is very spiritual, and that his wife is Rivkah. We know that he took Rivkah to his mothers tent and she filled his mothers place.

I'm going to start with the last points. Yitzchok took Rivkah to his mother's tent. His mother is dead. This means that he must see something special in Rivkah that led him to showing her something so sentimental. It also says that Rivkah "filled his mother's place". This proves to solidify our evidence that there was something about Rivkah that immediately clicked for Yitzchok.

Yitzchok is very spiritual. It is said that he was out in the field either meditating or davening mincha. It is also an accepted possibility that he wasn't physically blind, but rather his spirituality blinded him to the reality of Eisav's nature.

I think there is a very important lesson to be learned here. It is a wonderful and good thing to sit and learn and become righteous. But if by becoming learned you completely block out the outside world and become oblivious to everything around you, then that is not right. A happy medium is necessary.