Since Lord Vishu is one of the most power gods known to mankind, hence, it is quite significant to do the Vishnu Sahasranam Puja.
This puja is also done to bring happiness and prosperity in a husband and wife’s married life. Hence, for newlyweds, or even an old couple for that matter,
this is a very significant pujan.
This pooja of Lord Vishnu is done with the shodasopacharas, i.e. it is the chanting of vishnusooktam, purushasooktam, and narayanopanishat and 1008 namavili jap of Lord Vishnu.
These chanting have to done in your name and also your wish.