90:1-2 God is and has created our dwelling place: spiritually and physically. He has designed our planet and our bodies to coexist and ideally, support each other. He created planets, mountains, seas and all of the science behind them. But He is also our place of peace; God is the place we go to for comfort, counsel, rest, and inspiration. Our physical bodies are on earth, but our eyes should be fixated on God. Our soul and mind should exist within His philosophy, His kingdom.
90:3-6 From God's perspective, human lives are fleeting. Short and fast. In comparison to the eons and eternity of His existence. He has seen us through all stages of the development, the earth and solar system and universe through all of its stages of development. It is so important that we make our journey on this planet spiritual in nature. That we seek Him find Him and choose Him.
90:7-12 God's righteous indignation against evil actions is easy to understand when we consider that He considers how short our time here is. We have these precious, fleeting moments to choose righteousness and peace. It is such a terrible waste for us to lose eternity because of selfishness on earth.
God uses His righteous indignation to instruct us. He teaches us to be better, to change. This Psalm is a reminder that it is crucial for us to "gain a heart of wisdom", to adapt to God's philosophy. We only have so long to do so.
90:13-17 The Psalmist prayed for compassion and mercy. He prayed for joy. He prayed to appreciate the moments of discipline that led him to better self-awareness, purposefulness, gratitude and servitude in the kingdom. He prayed to see light in a sometimes-dark world. He prayed for awareness, perception, perspective and appreciation of the earth and opportunity before him. He prayed to see God's hand in everything. He prayed for the beauty of God's intervention in his life. He prayed that what he did would be established by God.
In essence, he prayed to completely submit to God's will. And when we do the same, our whole life changes.
