Communicating With Spirits

Just prior to the sweat, yesterday, it was raining fairly hard.  I tried communicating and negotiating with the storm in order to stop the rain and have a sweat lodge.  The negotiating involves first joining with the spirit of the lodge and then connecting with the weather/storm.  The whole process needs to be done with respect, love and humility and also with the objective of being of service, not for any selfish motive.  With all that in mind, it is then possible to communicate that intent to the storm and request that it hold off from 2:00 to 7:00.  I have heard of others (Native Americans) doing this sort of thing and have been doing it periodically for several years.  Last night, it then stopped raining for the period of the lodge and a bit more and then it rained all night.  Perhaps coincidence, but similar things have happened repeatedly, before.  I would like some method to be sure something is happening, but perhaps I am just being a silly member of my culture. "Understanding is not required"!