I thought that also about butterflies & deceased loved ones sending them... I few monthes after a family member died I was tending to my flower pots & a large colorful butterfly landed on my shoulder.... I slowly turned my head toward it ...& watched it ... it kept slowly opening & closing it's wings... It sat there for about 20-30 sec....then it kept fluttering around my head til I was done, then it flew off. It was beautiful