He who is  happy with his lot" a mishna in Ethics  of the Fathers, the acronym of "Ashir" (wealthy) stands for "eyes", "hands",  "teeth", "legs", that means that if you have the basic  necessities to be able to function, just for that he must be grateful to  G-d and be happy with his lot, the fact that he has some  financial difficulties or some medical issues... but overall he's alive thank G-d,  and functioning, he has a lot to be  grateful for. 