'solar system heating'
In a nut shell, rubbish. Each planet has it's own way of doing things regarding global warming type effects, and last I read Uranus may well have been cooling down, so all talk of "the Sun causing every planet to heat up" is just another set of buzz words to try and get people to listen. And that's forgetting the small matter of seasons. Not just Earth that has them, and when it takes 160 odd years to orbit the Sun like Neptune, you're going to have to give the simplest explanations some thought.
'planetary vibrations' and 'subtle changes in the planets'
With a new massive object in the solar system as oh so many claims include, we'd expect to see changes, and probably pretty drastic ones. We haven't seen anything at all. But then if this is the wording they use, 'subtle changes' can be applied to anything it's so vague.
The whole spiritual side of things is frankly a cop out, it's not like you can test whether the human populace has had a spiritual awakening when the very people claiming it will take place can't even explain why it will take place.