The phrase "to realize" means to become aware or conscious, to understand something fully, or to bring about a particular condition or state. Full definition
I've not been at home in my kitchen for three months and I didn't realise how much I missed combining random sugar - free ingredients! (happysugarhabits.com)
Many people just don't realise how good a meat free meal can be. (meatfreemondays.com)
All of these things are human rights, all of them when realised help promote a functioning and stable democratic society. (humanrights.gov.au)