My brother and sister are snowed in up in Michigan. With the cold weather settling in and the snow piling up, I found myself thinking about snowed-in essentials — not the usual ones, but the kind that matter to the people you love. So I did what any good sister does — I checked in. Not about the obvious things. When people talk about snowed-in essentials, they often think of food and supplies, but comfort can look different depending on the person — and the people — you’re caring for. I asked, “Do you have everything you need?” And by everything, I meant his everything. My brother is 65. He’s…