its very simple to meditate on this . here is  a meditation 
with your in breath imagine waking up to your smell of sweat and having nowhere to clean
with your outbreath imagine cool water over you skin  and wish it for those who dont have it 
​with your in breath , imagine eating raw food (not unaffordable fruit either) uncooked when its wet and cannot cook on a fire and you also have no electricity 
​with your outbreath  imagine the warmth of your stomach after aa meal of cooked oats and wish it for those who dont have it 
with your inbreath imagine the wet ground cold at night but wet at night when it rains due to leaks in a shack  and wish it for those who dont have it 
without your outbreath imagine the the worth of your carpet on your feet stepping out of bed  and wish it for those who dont have it 
with your in breath imagine the drunken shouting due to alcolhol by those trying to escape the pain 
with your outbreath enjoy the silence in your home at night and wish it for tiose who dont have it 
with you in breath imagine the anxiety at night and any time knowing yu are no t protected and a gang member might start shooting or a drunken violent scene of robbery or abuse erupts in your home 
with your outbreath imagine the safety you feel behind your 4 solid walls and wish it for tiose who dont have it