Life is not always a matter of milestones, but of inchstones. So what is an inchstone?

inch·stone: in(t)SH-stōn (noun)
1. an action or event marking a significant change or stage in development.
2. an incredible moment experienced by caregivers, parents and individuals with special needs

“Reaching for that cracker and picking it up, even if she doesn't put it in her mouth, is a beautiful inchstone.”

synonyms: significant achievement, highlight, a miracle.

(Source: This definition was written by RareiTees' founder, Nicole Anderson.)