19 Moreover, when God gives someone wealth and possessions, and the ability to enjoy them, to accept their lot and be happy in their toil—this is a gift of God. – Ecclesiastes 5:19 (NIV)
In college, I had an English professor tell me that I needed to focus on what was in front of me or else life was going to pass me by. As a warning, she told a story about a relative, who was about my age, and highly career driven. In fact, he was so career driven that he was missing out on his young children growing up, etc. Instead of being so focused on the future, she said, you need to focus on what God has given you.
Contentment, as the above verse in Ecclesiastes says, is a blessing from God. A blessing that I am trying to slow down and enjoy.