What does "Shri Lakshmi" means

Word "Shri" means absolute purity and greatness or divinity. "Sh" represents "Shanti", "r" represents mind and "i" represents heart. "Lakshmi" means the ultimate goal of all beings. "Lakshya" means goal and Lakshmi means the ultimate goal, which is become one with Parabhrahmam..

Meaning on Pooja

The word "Pooja" means to give birth to Punya..
"Poo" means Punya and "ja" means Jayate (or giving birth). Any deeds that give birth to punya is a Pooja.

Punya are those deeds that elevates us spiritually and bring us close to self realization.