Patience
Assala mu alaikum,
Every handicapped has a reason, every able bodied Allah created has a reason,and not all able bodied person is superb. I believe each individual has his/her own strength and weakness, able to identify our strength will make us more wiser in life and as weakness, except it as a challenge to transform into positive ways in getting into life on this short/unpredictable earth we share.
We should be grateful, as we are muslims and if we practice the way muslims should understand about Islam we gain access to Heaven as promised. We look and march forward to the after life, by the way life now is only a temporary transition period. Make a lot , a lot patience, pray,preach,zakat are the only method to understand our thanks to the Creator of the Universe in and out.
Wallah hu wallam, only Allah knows.
Wassalam.