Well, Rahu Dasha is one of the most tricky dashas to survive through. The Dasha would pique individual’s desire for some material goal. It can be money, it can be a love interest, it can be a position of authority.
But if you take the bait and fall for your desire then it will be rewarding initially but then it will spiral down to the extent that it will become a mental trauma.
Also,, this cycle will keep repeating unless the individual takes a cue from the pattern and abstains from falling prey to his/her desires, whIch typically is the learning theme of the Dasha.
Praying can be a by product of this period because of he following reasons
- Praying to fulfill your desires
- Praying to abstain from falling prey to the pattern
Either ways praying is good. In the 1st case too praying can be construed as a way of passing the control to the deity being prayed upon. This relinquishing of control is the 1st step towards learning.
This is not only theoritical but also from personal experience.
Pray as you may.
Hope this helps.
Best of luck.