Your question is an omnibus question,covering various aspects.
The essence of your question is that if it is written
in chart that marriage will be performed at a future date,
what is the necessity for the individual to do penance,deity worship
Your question also includes that when the marriage is not written
in the chart,what is the necessity for individual to undergo ordeals
like fasting for one in a week,or avoiding milk products etc for one or
It is very difficult to answer in 5 or 10 lines.Even I write,
you cant understand.
So,go on reading answers for one or two years ,you will slowly
understand the spirit of astrology. firstname.lastname@example.org