Is It Rude To Send A Message To Heaven?

There are so many times when I see somebody that is old I mean............very old and the first thing I think of is............ ''Can I give you a message to take to my dad? '' I have never had the nerve to actually ask them. But I want to. Then, when they die...... I'm filled with regret. I'm kicking myself for missing the opportunity to talk to my dad. I've known many elderly people. Most of them seem ready to die and meet their maker. Some of them even talk about it. I choke on my words. I try so hard to spit them out but I can't. I don't want to make them sad. I don't want them to know that I know they are going to die soon. I will send a message to heaven. One day I will get the nerve to ask somebody that knows they will be there soon. I'll ask them to ''look my dad up'' and ''Tell him I love him''. Until then, I'll secretly wish they could read my mind.