Seeing a gilder signifies a man who decorates houses, speaks well, and is truthful in word and deed.
Seeing someone gild and decorate books such as the Qur'an or collections of hadith signifies following the noble Sunnah, righteousness in religion, strength in faith, and nearness to the Truth.
Seeing oneself gild a book containing matters of religious innovation signifies that the dreamer is in innovation and error.