There is a blessing and  evangelic affirmation similar to this teaching: "Blessed are the pure in heart because they shall see God" Matthew 5: 8; and "This is the eternal life, that they know you, the true only God" John 17: 3
View God means contemplation explain to us Thomas Aquinas. As better explain Aristotle, happiness is the result of a certain activity, and when more excellent is the activity best is happiness. Contemplation is the most excellent and perfect activity so the greatest degree of happiness belongs to this activity.
But what is more accurately the contemplation. The Contemplation is the meditation focused on the divine attributes of God; "we contemplate eternity, we contemplate the ominipotence of God." The contemplative activity is a product of the activity of the understanding, that is the reason that loves the good or the good intelligence.
The Contemplation is the activity of those who share their nature with God: The wisdom. In other words, contemplation is an activity of the state of grace, of the communion with God, "That all of them may be one, Father, just as you are in me and I am in you" John 17:21.
The Contemplation is united to the Concord. Thomas Aquinas teach us in his comments of the Beatitudes that there is another kind of happiness, the "opinated happiness", or to say what people think of what is happiness.
For those who "give an opinion about happiness" this responds to "moments", "moments of happiness" to be advantage, for these people happiness is never permanent and must be always pursuit. This happiness is opinated because the true happiness is just a product of our ability to minimize the suffering and give happiness to others.
If we generate suffering we receive suffering if we generate happiness we receive happiness, happiness is subject to the law of the return, "we reap what we sow", this is why the only true happiness is the result of our ability to do good and the union with God.
The Golden Rule: "Do unto others what you would like them to do for you" is the way to eternal happiness.