We recite many blessings over things that to us seem ordinary and routine – opening the eyes upon awakening, the ability to stretch and stand erect, the ability to get up and walk, and so forth.
These things seem ordinary because, in the midst of the routine, their significance tends to get lost, even though in truth it remains ever in place.
As a rule, we discover the great importance of routine things only when we are deprived of them.
It is only when one’s leg hurts, making walking difficult, that one realizes the significance of the blessing “Who makes firm the steps of man.”
–Rabbi Adin Steinsaltz