Our circumstances are constantly changing, but our hope in the Lord Jesus Christ is constant, rooted in the promise of the God with whom there is no variation or shadow due to change. This is why if we limit our gratitude to that which is shallow, such as our possessions or our own personal accomplishments, then we will quickly be uprooted when the storms of life hit us.
God has ordained a profound simplicity in the act of proper gratitude. At its core, God-centered thanksgiving focuses our attention on our eternal reward in Christ Jesus. And from that focal point, every good gift we receive this side of heaven, as well as every misfortune we face due to sin, is put into proper perspective.