Don't hanker after what you don't have. Instead, fix your attentions on the finest and best that you have, and imagine how much you would long for these if they weren't in your possession.
Marcus understood that desire blinds us — it fixates on the future and ignores the blessings of now. He trained himself, daily, to see the ordinary with awe. A friend, a warm meal, a clear sky — each was a miracle if you looked deeply. By imagining their absence, Marcus learned to cherish their presence. It was a practice of intentional appreciation, not passive comfort.
Gratitude is not automatic. Train it. Practice noticing what you'd miss.
"You never know what you have until you stop to look."