Love At First Sight - Right Or Wrong?

There are many facets to love. Some term love as God while some term love as illusion. This means that God is an illusion. Now what is this link? I remember to have read that love is an illusion many a time and also to have read that love is god. But that is really confusing. But I am a firm beliver that there can be no love at first sight. I really doubt who coined this phrase - 'love at first