You don't realize the value of good health until you get sick.
I've reached an age where I feel grateful for my parents.
Rare kanji spelling; the kana form is strongly preferred in modern writing.
Rare kanji spelling; the kana form is strongly preferred in modern writing.
Rare kanji spelling; the kana form is strongly preferred in modern writing.
Rare kanji spelling; the kana form is strongly preferred in modern writing.
Mixed kana-kanji spelling; occasionally seen but less common than the pure kana form.
Derived from the adjective ありがたい (grateful, welcome) by adding the suffix み, which turns adjectives into nouns expressing a quality or degree. The kanji 有難 (literally 'difficult to exist') reflects the idea of something being rare and therefore precious.