#Esau said in his heart

Here "heart" stands for Esau himself. AT: "Esau said to himself" (UDB) (See: [[:en:ta:vol2:translate:figs_synecdoche]])

#days of mourning for my father are near

This refers to a number of days a person grieves when a family member dies.

#The words of Esau her older son were told to Rebekah

Here "words" stands for what Esau said. This can be stated in active form. AT: "Someone told Rebekah about Esau's plan" (See: [[:en:ta:vol2:translate:figs_metonymy]] and [[:en:ta:vol2:translate:figs_activepassive]])

#See

"Listen" or "Pay attention"

#is consoling himself

"is making himself feel better"