Gaurdian angels come to whoever calls upon them, doesent matter who you are spiritual or not, its as simple as just clearing your thoughts and calling out to them. It might be arch angel Micheal, Rafael, Gabreal or st Jermain, I call upon all of them but Im sure there are many more. I call on them when Im down, confused or just plane old emotional. I know when they are answering me for when I do call upon them The hairs all over me stand up, goosebumps all over me and tears will stream down my face. Its as tho they are clearing or doen whatever the need to do. They want humanity to call on them as much as possible, they long for our calls! Very rare occations I can visulize them depends on my situation, what Im calling them for & what emotional state Im in. Your imagination would be the 1 of the best ways to do this for to have imagination, thus makes you creative & if you are creative than you are open, if your open then you have a heart & if you use your heart than you unlock many things in your subconsiouse as well as your own oneness. To be one with yourself is to be one with all things! This is one of the things our guardians want us to know. Your angels are always with you 24/7, they never leave your side! You dont have to speak out loud to them, even just a simple thought as long as the thought is from the heart, you are then already comunicating with your angels...