You need to restructure your life. Meaningful things tend to be hard to squeeze in to unplanned, random 2 hour blocks if they aren't already a part of your life

You need to restructure your life. Meaningful things tend to be hard to squeeze in to unplanned, random 2 hour blocks if they aren't already a part of your life. Trying to find canned meaning to fill your random 2 hour chunk seems vaguely like looking for the fast food that is every bit as healthy, cheap, and tasty as home cooking. Now, if you instead for example become a gardener and enjoy gardening, maybe you can take those 2 hours and spend them caring for the garden. In short, try to fill your life with good things you enjoy, instead of trying to find a meaningful peg that fits into an arbitrary hole of your specifications.