But sun is generally ok for vitamin d, as otherwise no vitamin d whatsoever.Afterwards you can do whatever, but try at least one thing for some minutes. So i could say, i tried all of it and if you dont enjoy meditation, dont force yourself.
Maths for 6 months doing by themselves is not too many people do. But thinking work can be also physics, it should feel like brainwork. If you did simple puzzle you can ask yourself, was i really working on something or was it something in between. Choosing thinking as goal and arts and sports as meditation exercises would do the same. You dont need to do something additional then to imagine like sun or whatever. Like i did the word control. So to sum up its 3 basic occupations, breath... Then i think isnt it enough to sence 7 bodyparts? Actually yes, i think its enough, but it does not really matter. Then breath, but if i write and breath, then people would think they need to try brath for 6 months... So i thought you can do it altogether. But imagining something is i think good to try. Then its just imagine and sence something big and 3 occupations. Or in theory 3 occupations as goals and breath... Hm... I am loosing feeling for it. Lets say try 3 things or think of it, sence something big, imagine something. Then try also for some minutes other bodyparts 8 more than 7. I wrote sth before... By analyzing the body and thoughts its easy to come up with what you want which does not feel lazy and its more than 1 think often